diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/PropertySummaryDocumentationCodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/PropertySummaryDocumentationCodeFixProvider.cs
index e2070bf001..70c29a635d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/PropertySummaryDocumentationCodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/PropertySummaryDocumentationCodeFixProvider.cs
@@ -14,7 +14,6 @@ namespace StyleCop.Analyzers.DocumentationRules
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using StyleCop.Analyzers.Helpers;
-    using StyleCop.Analyzers.Helpers.ObjectPools;
 
     /// <summary>
     /// Implements the code fix for property summary documentation.
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/SA1600CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/SA1600CodeFixProvider.cs
index a0929311c2..0e849a14ed 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/SA1600CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/DocumentationRules/SA1600CodeFixProvider.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.DocumentationRules
 {
-    using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Composition;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Helpers/FixAllContextHelper.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Helpers/FixAllContextHelper.cs
index 8e2c3278dc..da80c3e56f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Helpers/FixAllContextHelper.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Helpers/FixAllContextHelper.cs
@@ -12,7 +12,6 @@ namespace StyleCop.Analyzers.Helpers
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CodeFixes;
-    using Microsoft.CodeAnalysis.Diagnostics;
 
     internal static class FixAllContextHelper
     {
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/NamingRules/SA1302CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/NamingRules/SA1302CodeFixProvider.cs
index 9777e97371..e37b2c9d67 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/NamingRules/SA1302CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/NamingRules/SA1302CodeFixProvider.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.NamingRules
 {
     using System.Collections.Immutable;
     using System.Composition;
-    using System.Linq;
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/OrderingRules/UsingCodeFixProvider.UsingsSorter.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/OrderingRules/UsingCodeFixProvider.UsingsSorter.cs
index be6c946c49..b2ac87aecd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/OrderingRules/UsingCodeFixProvider.UsingsSorter.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/OrderingRules/UsingCodeFixProvider.UsingsSorter.cs
@@ -6,14 +6,12 @@ namespace StyleCop.Analyzers.OrderingRules
     using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.Globalization;
     using System.Linq;
     using System.Threading;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using StyleCop.Analyzers.Helpers;
-    using StyleCop.Analyzers.Helpers.ObjectPools;
     using StyleCop.Analyzers.Lightup;
     using StyleCop.Analyzers.Settings.ObjectModel;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1130CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1130CodeFixProvider.cs
index 3ca44c4a6b..413ddb32dd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1130CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1130CodeFixProvider.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.ReadabilityRules
 {
-    using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Composition;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1135CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1135CodeFixProvider.cs
index 9e52b32c52..5eebc34aec 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1135CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1135CodeFixProvider.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.ReadabilityRules
 {
-    using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Composition;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1139CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1139CodeFixProvider.cs
index fd9ec28066..fe78700a5e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1139CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1139CodeFixProvider.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.ReadabilityRules
 {
-    using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Composition;
     using System.Linq;
@@ -14,7 +13,6 @@ namespace StyleCop.Analyzers.ReadabilityRules
     using Microsoft.CodeAnalysis.CodeFixes;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
-    using Microsoft.CodeAnalysis.Text;
     using StyleCop.Analyzers.Helpers;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1142CodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1142CodeFixProvider.cs
index e3e2fd8a05..6b06f2a306 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1142CodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/ReadabilityRules/SA1142CodeFixProvider.cs
@@ -13,8 +13,6 @@ namespace StyleCop.Analyzers.ReadabilityRules
     using Microsoft.CodeAnalysis.CodeActions;
     using Microsoft.CodeAnalysis.CodeFixes;
     using Microsoft.CodeAnalysis.CSharp;
-    using Microsoft.CodeAnalysis.CSharp.Syntax;
-    using Microsoft.CodeAnalysis.Simplification;
     using StyleCop.Analyzers.Helpers;
     using StyleCop.Analyzers.Lightup;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Settings/SettingsFileCodeFixProvider.cs b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Settings/SettingsFileCodeFixProvider.cs
index d70f03e053..d3d5c0d3e0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Settings/SettingsFileCodeFixProvider.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/Settings/SettingsFileCodeFixProvider.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.Settings
 {
-    using System;
     using System.Collections.Immutable;
     using System.Composition;
     using System.Linq;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Status.Generator/SolutionReader.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Status.Generator/SolutionReader.cs
index 1bfdb40e05..e46c6defb4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Status.Generator/SolutionReader.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Status.Generator/SolutionReader.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Status.Generator
     using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.IO;
     using System.Linq;
     using System.Reflection;
     using System.Text.RegularExpressions;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/LayoutRules/SA1500CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/LayoutRules/SA1500CSharp7UnitTests.cs
index ef60358e16..08d3111512 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/LayoutRules/SA1500CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/LayoutRules/SA1500CSharp7UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.LayoutRules
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/ConstantPatternSyntaxWrapperTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/ConstantPatternSyntaxWrapperTests.cs
index bd91b00bb6..c7b15b34d2 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/ConstantPatternSyntaxWrapperTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/ConstantPatternSyntaxWrapperTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.Lightup
     using System;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
-    using StyleCop.Analyzers.Helpers;
     using StyleCop.Analyzers.Lightup;
     using Xunit;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/DeclarationPatternSyntaxWrapperTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/DeclarationPatternSyntaxWrapperTests.cs
index 6a97dc8f9a..c8e3d1da16 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/DeclarationPatternSyntaxWrapperTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/DeclarationPatternSyntaxWrapperTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.Lightup
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
-    using StyleCop.Analyzers.Helpers;
     using StyleCop.Analyzers.Lightup;
     using Xunit;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/SingleVariableDesignationSyntaxWrapperTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/SingleVariableDesignationSyntaxWrapperTests.cs
index 9392a5d067..c757893b30 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/SingleVariableDesignationSyntaxWrapperTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/SingleVariableDesignationSyntaxWrapperTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.Lightup
     using System;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
-    using StyleCop.Analyzers.Helpers;
     using StyleCop.Analyzers.Lightup;
     using Xunit;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/TupleElementSyntaxWrapperTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/TupleElementSyntaxWrapperTests.cs
index c38631247e..95cf467de6 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/TupleElementSyntaxWrapperTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/Lightup/TupleElementSyntaxWrapperTests.cs
@@ -4,7 +4,6 @@
 namespace StyleCop.Analyzers.Test.CSharp7.Lightup
 {
     using System;
-    using System.Collections.Immutable;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1119CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1119CSharp7UnitTests.cs
index e662431a86..474e31d6c3 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1119CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1119CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.MaintainabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.MaintainabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1119StatementMustNotUseUnnecessaryParenthesis,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1414CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1414CSharp7UnitTests.cs
index 0bf37dad24..38e71e0c89 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1414CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/MaintainabilityRules/SA1414CSharp7UnitTests.cs
@@ -3,10 +3,6 @@
 
 namespace StyleCop.Analyzers.Test.CSharp7.MaintainabilityRules
 {
-    using System;
-    using System.Collections.Generic;
-    using System.Linq;
-    using System.Text;
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1300CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1300CSharp7UnitTests.cs
index d2c87b8bf3..c61e5e5168 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1300CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1300CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.NamingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1300ElementMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1305CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1305CSharp7UnitTests.cs
index 4098bbf5ba..1a0eb68e8d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1305CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1305CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.NamingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.NamingRules.SA1305FieldNamesMustNotUseHungarianNotation>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1312CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1312CSharp7UnitTests.cs
index 97f5d0a8b0..ef8170a755 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1312CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/NamingRules/SA1312CSharp7UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.NamingRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.NamingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1312VariableNamesMustBeginWithLowerCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1110CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1110CSharp7UnitTests.cs
index 9f612388b4..faa35ee48c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1110CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1110CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1110OpeningParenthesisMustBeOnDeclarationLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1111CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1111CSharp7UnitTests.cs
index a4a9ecf34a..2c7f21a833 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1111CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1111CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1111ClosingParenthesisMustBeOnLineOfLastParameter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1112CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1112CSharp7UnitTests.cs
index 72c822ee70..3984dd0205 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1112CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1112CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1112ClosingParenthesisMustBeOnLineOfOpeningParenthesis,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1113CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1113CSharp7UnitTests.cs
index 85f37cab0c..f6ed0bc7ae 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1113CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1113CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1113CommaMustBeOnSameLineAsPreviousParameter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1114CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1114CSharp7UnitTests.cs
index e16996199e..d67750b300 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1114CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1114CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1114ParameterListMustFollowDeclaration>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1115CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1115CSharp7UnitTests.cs
index e34906a70f..742bf3a80b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1115CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1115CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1115ParameterMustFollowComma>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1116CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1116CSharp7UnitTests.cs
index 8b2e17dbd8..58db035eac 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1116CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1116CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1116SplitParametersMustStartOnLineAfterDeclaration,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1117CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1117CSharp7UnitTests.cs
index e87517f68a..0d5fade2ec 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1117CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1117CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1117ParametersMustBeOnSameLineOrSeparateLines>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1125CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1125CSharp7UnitTests.cs
index adced1114f..231070dd5f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1125CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1125CSharp7UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1125UseShorthandForNullableTypes>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1139CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1139CSharp7UnitTests.cs
index 03974afa66..1e960bbf81 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1139CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/ReadabilityRules/SA1139CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1139UseLiteralSuffixNotationInsteadOfCasting,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1003CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1003CSharp7UnitTests.cs
index 69a47e7d73..fffe3fab28 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1003CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1003CSharp7UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.CSharp7.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.SpacingRules;
-    using TestHelper;
     using Xunit;
 
     using static StyleCop.Analyzers.SpacingRules.SA1003SymbolsMustBeSpacedCorrectly;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1008CSharp7UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1008CSharp7UnitTests.cs
index 870abadebb..abb40e5482 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1008CSharp7UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp7/SpacingRules/SA1008CSharp7UnitTests.cs
@@ -5,10 +5,8 @@ namespace StyleCop.Analyzers.Test.CSharp7.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.SpacingRules;
-    using TestHelper;
     using Xunit;
 
     using static StyleCop.Analyzers.SpacingRules.SA1008OpeningParenthesisMustBeSpacedCorrectly;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/Lightup/StackAllocArrayCreationExpressionSyntaxExtensionsTestsCSharp8.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/Lightup/StackAllocArrayCreationExpressionSyntaxExtensionsTestsCSharp8.cs
index a13603acb6..7e88b8a858 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/Lightup/StackAllocArrayCreationExpressionSyntaxExtensionsTestsCSharp8.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/Lightup/StackAllocArrayCreationExpressionSyntaxExtensionsTestsCSharp8.cs
@@ -3,10 +3,7 @@
 
 namespace StyleCop.Analyzers.Test.CSharp8.Lightup
 {
-    using Microsoft.CodeAnalysis.CSharp;
-    using StyleCop.Analyzers.Lightup;
     using StyleCop.Analyzers.Test.CSharp7.Lightup;
-    using Xunit;
 
     public class StackAllocArrayCreationExpressionSyntaxExtensionsTestsCSharp8 : StackAllocArrayCreationExpressionSyntaxExtensionsTests
     {
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/MaintainabilityRules/SA1119CSharp8UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/MaintainabilityRules/SA1119CSharp8UnitTests.cs
index 77e66016aa..d5627e660a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/MaintainabilityRules/SA1119CSharp8UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp8/MaintainabilityRules/SA1119CSharp8UnitTests.cs
@@ -8,8 +8,6 @@ namespace StyleCop.Analyzers.Test.CSharp8.MaintainabilityRules
 
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.Testing;
-
-    using StyleCop.Analyzers.Lightup;
     using StyleCop.Analyzers.Test.CSharp7.MaintainabilityRules;
 
     using Xunit;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/InheritdocCodeFixProviderUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/InheritdocCodeFixProviderUnitTests.cs
index e843acfce4..17e3cf31f2 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/InheritdocCodeFixProviderUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/InheritdocCodeFixProviderUnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/NoXmlFileHeaderUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/NoXmlFileHeaderUnitTests.cs
index 54e074f233..916f945aa8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/NoXmlFileHeaderUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/NoXmlFileHeaderUnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.FileHeaderAnalyzers>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1601UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1601UnitTests.cs
index 87918f3d68..8395e6189f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1601UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1601UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1601PartialElementsMustBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1602UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1602UnitTests.cs
index 7344e70e52..62577124c8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1602UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1602UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1602EnumerationItemsMustBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1604UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1604UnitTests.cs
index e1a89f82f0..470986eaae 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1604UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1604UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1604ElementDocumentationMustHaveSummary>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1605UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1605UnitTests.cs
index e115d00236..c23a0a5e01 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1605UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1605UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1605PartialElementDocumentationMustHaveSummary>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1606UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1606UnitTests.cs
index 5ab2be42cb..ef71a454bb 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1606UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1606UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1606ElementDocumentationMustHaveSummaryText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1607UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1607UnitTests.cs
index 1ae80fa2d6..dc31ac8892 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1607UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1607UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1607PartialElementDocumentationMustHaveSummaryText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1608UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1608UnitTests.cs
index 6396cd0111..2890f74f42 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1608UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1608UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1608ElementDocumentationMustNotHaveDefaultSummary>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1609UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1609UnitTests.cs
index 02e9df98a5..8876214a0b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1609UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1609UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1609PropertyDocumentationMustHaveValue>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1610UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1610UnitTests.cs
index 10acd6b50a..3ca982255a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1610UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1610UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1610PropertyDocumentationMustHaveValueText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1611UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1611UnitTests.cs
index 8d3060b539..31f7f74e45 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1611UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1611UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1611ElementParametersMustBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1612UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1612UnitTests.cs
index 56d6cb3cb0..b5690dbe0c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1612UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1612UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1612ElementParameterDocumentationMustMatchElementParameters>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1613UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1613UnitTests.cs
index a120fadf96..9249f6031a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1613UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1613UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1613ElementParameterDocumentationMustDeclareParameterName>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1614UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1614UnitTests.cs
index ff548361d0..b2d96f45d5 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1614UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1614UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1614ElementParameterDocumentationMustHaveText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1615UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1615UnitTests.cs
index 889961a231..8dd132b63f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1615UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1615UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1615ElementReturnValueMustBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1616UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1616UnitTests.cs
index 44600e569f..5aaac64322 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1616UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1616UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1616ElementReturnValueDocumentationMustHaveText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1617UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1617UnitTests.cs
index 8ad03649e8..4270d177d8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1617UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1617UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1617VoidReturnValueMustNotBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1618UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1618UnitTests.cs
index 584ffe5f12..f82c483854 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1618UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1618UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1618GenericTypeParametersMustBeDocumented>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1619UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1619UnitTests.cs
index 4c93c99554..be9e4707f0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1619UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1619UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1619GenericTypeParametersMustBeDocumentedPartialClass>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1620UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1620UnitTests.cs
index 1fc572f7bb..5ea9f219fa 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1620UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1620UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.GenericTypeParameterDocumentationAnalyzer>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1621UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1621UnitTests.cs
index 9d973a2e2b..e0ddefe0fc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1621UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1621UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.GenericTypeParameterDocumentationAnalyzer>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1622UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1622UnitTests.cs
index 675be12f50..9d39967bb0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1622UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1622UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.GenericTypeParameterDocumentationAnalyzer>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1623UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1623UnitTests.cs
index 35724a0edb..84475d470b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1623UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1623UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.DocumentationRules.PropertySummaryDocumentationAnalyzer,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1625UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1625UnitTests.cs
index 2c8b51142f..1129fec6bc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1625UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1625UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1625ElementDocumentationMustNotBeCopiedAndPasted>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1626UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1626UnitTests.cs
index de8ad5676e..c569d27afd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1626UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1626UnitTests.cs
@@ -6,8 +6,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using StyleCop.Analyzers.DocumentationRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.DocumentationRules.SA1626SingleLineCommentsMustNotUseDocumentationStyleSlashes,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1627UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1627UnitTests.cs
index 721cc6c8d7..08176f07aa 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1627UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1627UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1627DocumentationTextMustNotBeEmpty>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1629UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1629UnitTests.cs
index f16d5177cd..9c4bfe4c4c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1629UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1629UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1629DocumentationTextMustEndWithAPeriod>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1633UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1633UnitTests.cs
index 60e4659833..fb83b59fea 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1633UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1633UnitTests.cs
@@ -7,9 +7,7 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
-    using TestHelper;
     using Xunit;
-    using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.FileHeaderAnalyzers>;
 
     /// <summary>
     /// Unit tests for the SA1633 diagnostic.
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1642UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1642UnitTests.cs
index 20486a9249..e74e5bc61b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1642UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1642UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Helpers;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1642ConstructorSummaryDocumentationMustBeginWithStandardText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1643UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1643UnitTests.cs
index 169e3c8b7f..cbe4b5f147 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1643UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1643UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Helpers;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1643DestructorSummaryDocumentationMustBeginWithStandardText>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1648UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1648UnitTests.cs
index 3a9a7dc511..7d47f5eecb 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1648UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1648UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1648InheritDocMustBeUsedWithInheritingClass>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1651UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1651UnitTests.cs
index 9984f9f3fb..bd43cfc5b1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1651UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1651UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.DocumentationRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.DocumentationRules.SA1651DoNotUsePlaceholderElements>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/HelperTests/ObjectPools/ObjectPoolTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/HelperTests/ObjectPools/ObjectPoolTests.cs
index c0330eda5e..179388cd92 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/HelperTests/ObjectPools/ObjectPoolTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/HelperTests/ObjectPools/ObjectPoolTests.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.Test.HelperTests.ObjectPools
 {
-    using System;
     using StyleCop.Analyzers.Helpers.ObjectPools;
     using Xunit;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ArrayInitializers.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ArrayInitializers.cs
index 40089f0c61..8130ea02b4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ArrayInitializers.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ArrayInitializers.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Blocks.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Blocks.cs
index 3eaa2aee4f..be53143eb0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Blocks.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Blocks.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Classes.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Classes.cs
index 73a99fa604..b609a7c365 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Classes.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Classes.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Constructors.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Constructors.cs
index 0d206b4bbe..8e37ca4fa1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Constructors.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Constructors.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Delegates.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Delegates.cs
index 27e0dac70a..26f5bf49f0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Delegates.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Delegates.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Destructors.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Destructors.cs
index 639de2499c..354a9d7e1c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Destructors.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Destructors.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.DoWhiles.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.DoWhiles.cs
index 4bb6ce55c8..1420c4f3c6 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.DoWhiles.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.DoWhiles.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Enums.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Enums.cs
index f358164305..421b000c50 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Enums.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Enums.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Events.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Events.cs
index 98e5d748f5..d6b0c08967 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Events.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Events.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Ifs.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Ifs.cs
index 9c1711185d..83ff228b14 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Ifs.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Ifs.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Indexers.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Indexers.cs
index 1401060744..ef411b2f7d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Indexers.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Indexers.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Interfaces.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Interfaces.cs
index e05d1757fd..82c478b205 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Interfaces.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Interfaces.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.LambdaExpressions.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.LambdaExpressions.cs
index cf45619be3..3929555225 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.LambdaExpressions.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.LambdaExpressions.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Methods.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Methods.cs
index 1879599fc2..b1bef4bd1e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Methods.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Methods.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Namespaces.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Namespaces.cs
index 4f2dfbd7ab..3e7743db08 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Namespaces.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Namespaces.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ObjectInitializers.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ObjectInitializers.cs
index a1d72e5d58..8fc02d1982 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ObjectInitializers.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.ObjectInitializers.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Properties.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Properties.cs
index 9ea739e4a6..f342a1f447 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Properties.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Properties.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
     using StyleCop.Analyzers.Lightup;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.StatementBlocks.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.StatementBlocks.cs
index 26cea60bac..5217c98797 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.StatementBlocks.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.StatementBlocks.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Structs.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Structs.cs
index 75a401e116..234c5e6138 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Structs.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Structs.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Switches.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Switches.cs
index 5c31d74098..2a414fd66d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Switches.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.Switches.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.TryCatchFinallys.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.TryCatchFinallys.cs
index b148110b1c..fe2e38fa80 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.TryCatchFinallys.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.TryCatchFinallys.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.cs
index b2f081dc50..d60ca4d029 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1500/SA1500UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1500BracesForMultiLineStatementsMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1501UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1501UnitTests.cs
index f4da53335b..3b3e91273c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1501UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1501UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1501StatementMustNotBeOnASingleLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1502/SA1502UnitTests.Operators.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1502/SA1502UnitTests.Operators.cs
index e903d13685..87b37b16a8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1502/SA1502UnitTests.Operators.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1502/SA1502UnitTests.Operators.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1502ElementMustNotBeOnASingleLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1503UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1503UnitTests.cs
index 881104cf18..6b0faac678 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1503UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1503UnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using Microsoft.CodeAnalysis.Testing;
     using Microsoft.CodeAnalysis.Text;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1503BracesMustNotBeOmitted,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1504UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1504UnitTests.cs
index 23f2ea9a19..76c511353f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1504UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1504UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1504AllAccessorsMustBeSingleLineOrMultiLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1506UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1506UnitTests.cs
index 88aeea368a..8f2be01a4c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1506UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1506UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1506ElementDocumentationHeadersMustNotBeFollowedByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1507UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1507UnitTests.cs
index a65b937de6..438bc1c9be 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1507UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1507UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1507CodeMustNotContainMultipleBlankLinesInARow,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1508UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1508UnitTests.cs
index 66899c5325..3093fc4c9f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1508UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1508UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1508ClosingBracesMustNotBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1509UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1509UnitTests.cs
index a8c96bd173..9bc1b45e9f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1509UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1509UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1509OpeningBracesMustNotBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1510UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1510UnitTests.cs
index c7380aaac8..9643f028e3 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1510UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1510UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1510ChainedStatementBlocksMustNotBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1511UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1511UnitTests.cs
index d26cbaa13d..d5517b9062 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1511UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1511UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1511WhileDoFooterMustNotBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1512UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1512UnitTests.cs
index 554c10c914..4a06c076de 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1512UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1512UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1512SingleLineCommentsMustNotBeFollowedByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1513UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1513UnitTests.cs
index 70f92fcde4..4de43b6b05 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1513UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1513UnitTests.cs
@@ -3,14 +3,10 @@
 
 namespace StyleCop.Analyzers.Test.LayoutRules
 {
-    using System.Collections.Generic;
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis.CodeFixes;
-    using Microsoft.CodeAnalysis.Diagnostics;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1513ClosingBraceMustBeFollowedByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1514UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1514UnitTests.cs
index 4cf0be0c41..074f4d828e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1514UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1514UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1514ElementDocumentationHeaderMustBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1515UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1515UnitTests.cs
index b465c225a1..6efc2f6a33 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1515UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1515UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1515SingleLineCommentMustBePrecededByBlankLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1517UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1517UnitTests.cs
index 7f23642ed1..40e3133d67 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1517UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1517UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.LayoutRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1517CodeMustNotContainBlankLinesAtStartOfFile,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1518UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1518UnitTests.cs
index 4dd34b68de..e94d6e70e3 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1518UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1518UnitTests.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using StyleCop.Analyzers.LayoutRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.LayoutRules.SA1518UseLineEndingsCorrectlyAtEndOfFile>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1519UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1519UnitTests.cs
index 71b556b319..e71e247d0a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1519UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1519UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1519BracesMustNotBeOmittedFromMultiLineChildStatement,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1520UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1520UnitTests.cs
index 3001d9f243..d2e73d392d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1520UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LayoutRules/SA1520UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.LayoutRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.LayoutRules.SA1520UseBracesConsistently,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LightJson/Serialization/JsonWriterTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LightJson/Serialization/JsonWriterTests.cs
index 840d56456f..f0ca34b646 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/LightJson/Serialization/JsonWriterTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/LightJson/Serialization/JsonWriterTests.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.Test.LightJson.Serialization
 {
-    using System;
     using global::LightJson;
     using global::LightJson.Serialization;
     using Xunit;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/FileMayOnlyContainTestBase.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/FileMayOnlyContainTestBase.cs
index dd88d4d057..d029ce3d85 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/FileMayOnlyContainTestBase.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/FileMayOnlyContainTestBase.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using Microsoft.CodeAnalysis.CodeFixes;
     using Microsoft.CodeAnalysis.Diagnostics;
     using Microsoft.CodeAnalysis.Testing;
-    using Microsoft.CodeAnalysis.Testing.Verifiers;
     using StyleCop.Analyzers.Test.Verifiers;
     using Xunit;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1400UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1400UnitTests.cs
index 785cdb46d7..acc450c043 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1400UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1400UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1400AccessModifierMustBeDeclared,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1401UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1401UnitTests.cs
index 6ce44fa75c..0f7e33024c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1401UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1401UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.MaintainabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.MaintainabilityRules.SA1401FieldsMustBePrivate>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForDelegateUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForDelegateUnitTests.cs
index e7520fc749..b592ce5b07 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForDelegateUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForDelegateUnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
 
     public class SA1402ForDelegateUnitTests : SA1402ForNonBlockDeclarationUnitTestsBase
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForEnumUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForEnumUnitTests.cs
index 9c0257c83d..08dcb49d30 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForEnumUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForEnumUnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
 
     public class SA1402ForEnumUnitTests : SA1402ForNonBlockDeclarationUnitTestsBase
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForNonBlockDeclarationUnitTestsBase.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForNonBlockDeclarationUnitTestsBase.cs
index 97194326a7..6a39b14283 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForNonBlockDeclarationUnitTestsBase.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForNonBlockDeclarationUnitTestsBase.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.MaintainabilityRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
 
     public abstract class SA1402ForNonBlockDeclarationUnitTestsBase
     {
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1404UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1404UnitTests.cs
index 3241fed2be..28f5f28f01 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1404UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1404UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.MaintainabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1404CodeAnalysisSuppressionMustHaveJustification,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1407UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1407UnitTests.cs
index ecd6cc0ed9..76bb96ad32 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1407UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1407UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1407ArithmeticExpressionsMustDeclarePrecedence,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1408UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1408UnitTests.cs
index 59abbccbee..86e4d7a230 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1408UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1408UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1408ConditionalExpressionsMustDeclarePrecedence,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1410UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1410UnitTests.cs
index 8daa398d36..f91fe2e0c0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1410UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1410UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1410RemoveDelegateParenthesisWhenPossible,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1411UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1411UnitTests.cs
index 300a5c3d5f..4b74771931 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1411UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1411UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1411AttributeConstructorMustNotUseUnnecessaryParenthesis,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1413UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1413UnitTests.cs
index e8a4bc686a..66d2b77303 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1413UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1413UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.MaintainabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.MaintainabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.MaintainabilityRules.SA1413UseTrailingCommasInMultiLineInitializers,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1300UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1300UnitTests.cs
index eba998b91a..4cc36611e3 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1300UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1300UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.Helpers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1300ElementMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1302UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1302UnitTests.cs
index 384dbce3ba..55ee92a1d1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1302UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1302UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1302InterfaceNamesMustBeginWithI,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1303UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1303UnitTests.cs
index 93c4050efb..031a39f13a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1303UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1303UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1303ConstFieldNamesMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1304UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1304UnitTests.cs
index 78736e5258..2c8c5fff66 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1304UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1304UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1304NonPrivateReadonlyFieldsMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1305UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1305UnitTests.cs
index 8832313316..b5b08ef089 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1305UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1305UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.NamingRules.SA1305FieldNamesMustNotUseHungarianNotation>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1306UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1306UnitTests.cs
index d7c209aa2b..f8bf7897bd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1306UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1306UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.NamingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1306FieldNamesMustBeginWithLowerCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1307UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1307UnitTests.cs
index 8cb92dc621..0f4bc84bbf 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1307UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1307UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1307AccessibleFieldsMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1308UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1308UnitTests.cs
index ea9dc698c6..65c18c7535 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1308UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1308UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1308VariableNamesMustNotBePrefixed,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1309UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1309UnitTests.cs
index 04f16fd8da..b2668093f0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1309UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1309UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1309FieldNamesMustNotBeginWithUnderscore,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1310UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1310UnitTests.cs
index 335e1b04e9..c8f7a15899 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1310UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1310UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1310FieldNamesMustNotContainUnderscore,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1311UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1311UnitTests.cs
index 220d6caf68..023e9fcccc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1311UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1311UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1311StaticReadonlyFieldsMustBeginWithUpperCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1312UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1312UnitTests.cs
index c3b095317d..8633c45a87 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1312UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1312UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.Helpers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1312VariableNamesMustBeginWithLowerCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1313UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1313UnitTests.cs
index 1749ba87d8..9c5455be0e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1313UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1313UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.Helpers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1313ParameterNamesMustBeginWithLowerCaseLetter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1314UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1314UnitTests.cs
index 581cff2908..79f019793c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1314UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SA1314UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SA1314TypeParameterNamesMustBeginWithT,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309SUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309SUnitTests.cs
index 1ea680b113..209bad9a95 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309SUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309SUnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SX1309SStaticFieldNamesMustBeginWithUnderscore,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309UnitTests.cs
index e469817075..b17c72ae5a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/NamingRules/SX1309UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.NamingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.NamingRules.SX1309FieldNamesMustBeginWithUnderscore,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/CombinedUsingDirectivesVerifier.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/CombinedUsingDirectivesVerifier.cs
index 96b3058550..2100b58db6 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/CombinedUsingDirectivesVerifier.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/CombinedUsingDirectivesVerifier.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
 
     internal static class CombinedUsingDirectivesVerifier
     {
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200OutsideNamespaceUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200OutsideNamespaceUnitTests.cs
index 64cd5ed386..3cf0a60906 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200OutsideNamespaceUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200OutsideNamespaceUnitTests.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200PreserveUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200PreserveUnitTests.cs
index 532518e4eb..06fdfa33d9 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200PreserveUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200PreserveUnitTests.cs
@@ -5,12 +5,10 @@ namespace StyleCop.Analyzers.Test.OrderingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200UnitTests.cs
index 4380caaaa7..e9e1db76df 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1200UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1200UsingDirectivesMustBePlacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1201UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1201UnitTests.cs
index 15cdeeee16..aec461ce75 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1201UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1201UnitTests.cs
@@ -5,12 +5,7 @@ namespace StyleCop.Analyzers.Test.OrderingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-
-    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
-    using Microsoft.CodeAnalysis.Text;
-
-    using TestHelper;
     using Xunit;
 
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1202UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1202UnitTests.cs
index f11e290230..cd27e4f8a0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1202UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1202UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1202ElementsMustBeOrderedByAccess,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1204UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1204UnitTests.cs
index 657fe956f0..9132ac2573 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1204UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1204UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1204StaticElementsMustAppearBeforeInstanceElements,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206CodeFixProviderUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206CodeFixProviderUnitTests.cs
index f3e97c02b3..0e8650e4c5 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206CodeFixProviderUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206CodeFixProviderUnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1206DeclarationKeywordsMustFollowOrder,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206UnitTests.cs
index ffd1ef4f3f..7ea060247b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1206UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1206DeclarationKeywordsMustFollowOrder,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1208UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1208UnitTests.cs
index 3c9cc4338d..0e72a5d731 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1208UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1208UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1208SystemUsingDirectivesMustBePlacedBeforeOtherUsingDirectives,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1209UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1209UnitTests.cs
index 8bdb818404..8e0e629a2e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1209UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1209UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1209UsingAliasDirectivesMustBePlacedAfterOtherUsingDirectives,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210CombinedSystemDirectivesUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210CombinedSystemDirectivesUnitTests.cs
index 62f8d60b9d..29acbefdcc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210CombinedSystemDirectivesUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210CombinedSystemDirectivesUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.CustomDiagnosticVerifier<StyleCop.Analyzers.OrderingRules.SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210UnitTests.cs
index adee906fec..72aeb91b90 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1210UnitTests.cs
@@ -3,12 +3,10 @@
 
 namespace StyleCop.Analyzers.Test.OrderingRules
 {
-    using System.Collections.Generic;
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1211UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1211UnitTests.cs
index 8e341d5295..026303231c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1211UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1211UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1211UsingAliasDirectivesMustBeOrderedAlphabeticallyByAliasName,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1212UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1212UnitTests.cs
index 201eeccaa3..2fc530ad33 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1212UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1212UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1212PropertyAccessorsMustFollowOrder,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1213UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1213UnitTests.cs
index 7afa1ac7a2..43f167bdbb 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1213UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1213UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1213EventAccessorsMustFollowOrder,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1215UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1215UnitTests.cs
index 5dad74f067..bad35853b0 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1215UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1215UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1214ReadonlyElementsMustAppearBeforeNonReadonlyElements,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1216UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1216UnitTests.cs
index e7deed357f..6825602f0c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1216UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/SA1216UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.OrderingRules.SA1216UsingStaticDirectivesMustBePlacedAtTheCorrectLocation,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderCombinedSystemDirectivesUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderCombinedSystemDirectivesUnitTests.cs
index adaefa43f4..38a3c6aa1b 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderCombinedSystemDirectivesUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderCombinedSystemDirectivesUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static CombinedUsingDirectivesVerifier;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderGroupSeparationUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderGroupSeparationUnitTests.cs
index 28e97f542e..bc7a944117 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderGroupSeparationUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderGroupSeparationUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static CombinedUsingDirectivesVerifier;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderRegressionUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderRegressionUnitTests.cs
index 635565ea1f..32ee49081f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderRegressionUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderRegressionUnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static CombinedUsingDirectivesVerifier;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderUnitTests.cs
index 8051cde3de..d32d07a79f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/OrderingRules/UsingCodeFixProviderUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.OrderingRules
     using StyleCop.Analyzers.OrderingRules;
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
     using static CombinedUsingDirectivesVerifier;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1100UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1100UnitTests.cs
index 8f17750b73..67537d610c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1100UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1100UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1100DoNotPrefixCallsWithBaseUnlessLocalImplementationExists,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1102UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1102UnitTests.cs
index 91102fe779..7cb4962311 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1102UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1102UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA110xQueryClauses,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1104UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1104UnitTests.cs
index bb52e162a0..b1fe2b6e52 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1104UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1104UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA110xQueryClauses,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1105UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1105UnitTests.cs
index dd0fdbe14f..a0b496ab85 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1105UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1105UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA110xQueryClauses,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1106UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1106UnitTests.cs
index c98289f83a..b33af24688 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1106UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1106UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1106CodeMustNotContainEmptyStatements,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1108UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1108UnitTests.cs
index eb652c6101..4af90332e3 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1108UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1108UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1108BlockStatementsMustNotContainEmbeddedComments>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1110UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1110UnitTests.cs
index d7110f6413..100671ebe1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1110UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1110UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1110OpeningParenthesisMustBeOnDeclarationLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1111UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1111UnitTests.cs
index b03f16eb3a..68a37dca45 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1111UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1111UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1111ClosingParenthesisMustBeOnLineOfLastParameter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1112UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1112UnitTests.cs
index a930bc93db..2750edf199 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1112UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1112UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1112ClosingParenthesisMustBeOnLineOfOpeningParenthesis,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1113UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1113UnitTests.cs
index be53f9ea27..6ef5b67143 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1113UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1113UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1113CommaMustBeOnSameLineAsPreviousParameter,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1114UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1114UnitTests.cs
index 6d4744031a..e82c8af552 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1114UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1114UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1114ParameterListMustFollowDeclaration>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1115UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1115UnitTests.cs
index 8d0b1e80d1..3fa504be76 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1115UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1115UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1115ParameterMustFollowComma>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1116UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1116UnitTests.cs
index 2ec12eaa53..b9b477fdcf 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1116UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1116UnitTests.cs
@@ -11,7 +11,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1116SplitParametersMustStartOnLineAfterDeclaration,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1118UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1118UnitTests.cs
index ae1b1ad723..413246e7bc 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1118UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1118UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1118ParameterMustNotSpanMultipleLines>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1120UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1120UnitTests.cs
index 2cad224000..2362e997f8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1120UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1120UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1120CommentsMustContainText,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1121UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1121UnitTests.cs
index c4396f097d..8d02eef93a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1121UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1121UnitTests.cs
@@ -14,7 +14,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1121UseBuiltInTypeAlias,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1122UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1122UnitTests.cs
index 974489c51b..648416ce05 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1122UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1122UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1122UseStringEmptyForEmptyStrings,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1123UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1123UnitTests.cs
index 120cca2678..30692b6a96 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1123UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1123UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1123DoNotPlaceRegionsWithinElements,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1124UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1124UnitTests.cs
index 4e691b3af3..3be5685078 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1124UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1124UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1124DoNotUseRegions,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1125UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1125UnitTests.cs
index 809b873687..267e80306d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1125UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1125UnitTests.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.ReadabilityRules.SA1125UseShorthandForNullableTypes>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1127UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1127UnitTests.cs
index 0fcf33f040..369706e1c8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1127UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1127UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1127GenericTypeConstraintsMustBeOnOwnLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1129UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1129UnitTests.cs
index d4aa7e48dc..576caffceb 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1129UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1129UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1129DoNotUseDefaultValueTypeConstructor,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1130UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1130UnitTests.cs
index 107c87621c..a820ccc751 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1130UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1130UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1130UseLambdaSyntax,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1131UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1131UnitTests.cs
index e80008f73b..07394ba91d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1131UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1131UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1131UseReadableConditions,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1132UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1132UnitTests.cs
index fe8dd7a97f..34ecc48a35 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1132UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1132UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1132DoNotCombineFields,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1133UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1133UnitTests.cs
index 574c52c219..9b5314d793 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1133UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1133UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1133DoNotCombineAttributes,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1134UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1134UnitTests.cs
index 976b593f0c..1908cecf86 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1134UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1134UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1134AttributesMustNotShareLine,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1136UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1136UnitTests.cs
index 8159d132a1..5dc968c17d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1136UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1136UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1136EnumValuesShouldBeOnSeparateLines,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1137UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1137UnitTests.cs
index ff1b777f42..931c7cb8a5 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1137UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1137UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1137ElementsShouldHaveTheSameIndentation,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1139UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1139UnitTests.cs
index 568f9e586c..0e6c5ba113 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1139UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1139UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.ReadabilityRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SA1139UseLiteralSuffixNotationInsteadOfCasting,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SX1101UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SX1101UnitTests.cs
index 7a11e90f86..e0558c54e4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SX1101UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SX1101UnitTests.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.Test.ReadabilityRules
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.ReadabilityRules.SX1101DoNotPrefixLocalMembersWithThis,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1001UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1001UnitTests.cs
index 6b0ae1da6d..4285198cad 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1001UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1001UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1001CommasMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1002UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1002UnitTests.cs
index 6d4fee49be..53473a3541 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1002UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1002UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1002SemicolonsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1003UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1003UnitTests.cs
index 449612591f..a3bc013e54 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1003UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1003UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
 
     using static StyleCop.Analyzers.SpacingRules.SA1003SymbolsMustBeSpacedCorrectly;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1004UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1004UnitTests.cs
index 7076f46580..c14c7d841f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1004UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1004UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1004DocumentationLinesMustBeginWithSingleSpace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1006UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1006UnitTests.cs
index adee28807d..80d0d0317a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1006UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1006UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1006PreprocessorKeywordsMustNotBePrecededBySpace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1007UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1007UnitTests.cs
index 70d5c95b53..19e57e6eca 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1007UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1007UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1007OperatorKeywordMustBeFollowedBySpace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1008UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1008UnitTests.cs
index 15429fbb33..2f55c4da3e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1008UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1008UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.SpacingRules.SA1008OpeningParenthesisMustBeSpacedCorrectly;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1011UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1011UnitTests.cs
index 95e871273b..d76508dc8d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1011UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1011UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1011ClosingSquareBracketsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1012UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1012UnitTests.cs
index a44f7db996..c1d22f94c7 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1012UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1012UnitTests.cs
@@ -5,10 +5,8 @@ namespace StyleCop.Analyzers.Test.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1012OpeningBracesMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1013UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1013UnitTests.cs
index 47c312106c..e8ec4d3304 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1013UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1013UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1013ClosingBracesMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1014UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1014UnitTests.cs
index 679c756a03..bd054b605e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1014UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1014UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1014OpeningGenericBracketsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1016UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1016UnitTests.cs
index f34077de0b..0556365f82 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1016UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1016UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1016OpeningAttributeBracketsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1017UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1017UnitTests.cs
index a5a4a95ba5..6592627c2c 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1017UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1017UnitTests.cs
@@ -5,10 +5,8 @@ namespace StyleCop.Analyzers.Test.SpacingRules
 {
     using System.Threading;
     using System.Threading.Tasks;
-    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1017ClosingAttributeBracketsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1018UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1018UnitTests.cs
index 4f0140be1c..623515c431 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1018UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1018UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1018NullableTypeSymbolsMustNotBePrecededBySpace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1020UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1020UnitTests.cs
index 964fe98108..49c324a48a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1020UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1020UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1020IncrementDecrementSymbolsMustBeSpacedCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1025UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1025UnitTests.cs
index 361d7478c4..5b00432187 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1025UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1025UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1025CodeMustNotContainMultipleWhitespaceInARow,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027AlternateIndentationUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027AlternateIndentationUnitTests.cs
index a0abaacc8a..e1b7ef732d 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027AlternateIndentationUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027AlternateIndentationUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.SpacingRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UnitTests.cs
index 0c99ec38bb..0aced51715 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UnitTests.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1027UseTabsCorrectly,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UseTabsUnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UseTabsUnitTests.cs
index ef88cef2a3..b9fe832f6e 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UseTabsUnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1027UseTabsUnitTests.cs
@@ -9,7 +9,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using StyleCop.Analyzers.Settings.ObjectModel;
     using StyleCop.Analyzers.SpacingRules;
     using StyleCop.Analyzers.Test.Verifiers;
-    using TestHelper;
     using Xunit;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1028UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1028UnitTests.cs
index ae43974897..70ae6f8435 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1028UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1028UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Threading.Tasks;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpacingRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
         StyleCop.Analyzers.SpacingRules.SA1028CodeMustNotContainTrailingWhitespace,
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0001UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0001UnitTests.cs
index 4315640313..fb0284cca1 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0001UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0001UnitTests.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.Test.SpecialRules
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.SpecialRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.SpecialRules.SA0001XmlCommentAnalysisDisabled>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0002UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0002UnitTests.cs
index 522e63807c..ee7971d4d6 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0002UnitTests.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/SpecialRules/SA0002UnitTests.cs
@@ -14,7 +14,6 @@ namespace StyleCop.Analyzers.Test.SpecialRules
     using Microsoft.CodeAnalysis.Text;
     using StyleCop.Analyzers.Settings;
     using StyleCop.Analyzers.SpecialRules;
-    using TestHelper;
     using Xunit;
     using static StyleCop.Analyzers.Test.Verifiers.StyleCopDiagnosticVerifier<StyleCop.Analyzers.SpecialRules.SA0002InvalidSettingsFile>;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test/Verifiers/StyleCopCodeFixVerifier`2.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test/Verifiers/StyleCopCodeFixVerifier`2.cs
index b292901ff8..b63b7cd315 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers.Test/Verifiers/StyleCopCodeFixVerifier`2.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers.Test/Verifiers/StyleCopCodeFixVerifier`2.cs
@@ -7,7 +7,6 @@ namespace StyleCop.Analyzers.Test.Verifiers
     using System.Collections.Generic;
     using System.IO;
     using System.Linq;
-    using System.Reflection;
     using System.Threading;
     using System.Threading.Tasks;
     using global::LightJson;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PartialElementDocumentationSummaryBase.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PartialElementDocumentationSummaryBase.cs
index 248b32816a..2be4d739c4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PartialElementDocumentationSummaryBase.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PartialElementDocumentationSummaryBase.cs
@@ -4,7 +4,6 @@
 namespace StyleCop.Analyzers.DocumentationRules
 {
     using System;
-    using System.Collections.Generic;
     using System.Linq;
     using System.Text;
     using System.Xml.Linq;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PropertySummaryDocumentationAnalyzer.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PropertySummaryDocumentationAnalyzer.cs
index b0f616154c..c3c021d053 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PropertySummaryDocumentationAnalyzer.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/PropertySummaryDocumentationAnalyzer.cs
@@ -12,7 +12,6 @@ namespace StyleCop.Analyzers.DocumentationRules
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.Helpers;
-    using StyleCop.Analyzers.Lightup;
 
     /// <summary>
     /// Analyzes the correct usage of property summary documentation.
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1604ElementDocumentationMustHaveSummary.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1604ElementDocumentationMustHaveSummary.cs
index 47fde3f253..718fdab108 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1604ElementDocumentationMustHaveSummary.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1604ElementDocumentationMustHaveSummary.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.DocumentationRules
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.Helpers;
-    using StyleCop.Analyzers.Settings.ObjectModel;
 
     /// <summary>
     /// The XML header documentation for a C# element is missing a <c>&lt;summary&gt;</c> tag.
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1625ElementDocumentationMustNotBeCopiedAndPasted.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1625ElementDocumentationMustNotBeCopiedAndPasted.cs
index c12d0b110f..fd5db6d54a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1625ElementDocumentationMustNotBeCopiedAndPasted.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1625ElementDocumentationMustNotBeCopiedAndPasted.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.DocumentationRules
     using System.Collections.Immutable;
     using System.Globalization;
     using System.Linq;
-    using System.Resources;
     using System.Xml.Linq;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1643DestructorSummaryDocumentationMustBeginWithStandardText.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1643DestructorSummaryDocumentationMustBeginWithStandardText.cs
index dfa06759b7..1a68ba222f 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1643DestructorSummaryDocumentationMustBeginWithStandardText.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1643DestructorSummaryDocumentationMustBeginWithStandardText.cs
@@ -8,7 +8,6 @@ namespace StyleCop.Analyzers.DocumentationRules
     using System.Globalization;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
-    using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
 
     /// <summary>
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1649FileNameMustMatchTypeName.cs b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1649FileNameMustMatchTypeName.cs
index 9f8f5ad33f..f4fd142563 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1649FileNameMustMatchTypeName.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/SA1649FileNameMustMatchTypeName.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.DocumentationRules
 {
     using System;
     using System.Collections.Immutable;
-    using System.IO;
     using System.Linq;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/DiagnosticOptionsHelper.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/DiagnosticOptionsHelper.cs
index 29671aae6c..b7069a6fbd 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/DiagnosticOptionsHelper.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/DiagnosticOptionsHelper.cs
@@ -7,7 +7,6 @@
 namespace StyleCop.Analyzers.Helpers
 {
     using System;
-    using System.Collections.Immutable;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.Diagnostics;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/FileHeaderHelpers.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/FileHeaderHelpers.cs
index 3f9d047396..4b8f1807c4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/FileHeaderHelpers.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Helpers/FileHeaderHelpers.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.Helpers
 {
     using System;
     using System.Linq;
-    using System.Text;
     using System.Xml;
     using System.Xml.Linq;
     using Microsoft.CodeAnalysis;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1505OpeningBracesMustNotBeFollowedByBlankLine.cs b/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1505OpeningBracesMustNotBeFollowedByBlankLine.cs
index 9148514efb..2d192b7266 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1505OpeningBracesMustNotBeFollowedByBlankLine.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1505OpeningBracesMustNotBeFollowedByBlankLine.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.LayoutRules
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.Helpers;
-    using StyleCop.Analyzers.SpacingRules;
 
     /// <summary>
     /// An opening brace within a C# element, statement, or expression is followed by a blank line.
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1509OpeningBracesMustNotBePrecededByBlankLine.cs b/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1509OpeningBracesMustNotBePrecededByBlankLine.cs
index b177e010f4..16a54d4f7a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1509OpeningBracesMustNotBePrecededByBlankLine.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1509OpeningBracesMustNotBePrecededByBlankLine.cs
@@ -5,10 +5,8 @@ namespace StyleCop.Analyzers.LayoutRules
 {
     using System;
     using System.Collections.Immutable;
-    using System.Linq;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
-    using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.Helpers;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1119StatementMustNotUseUnnecessaryParenthesis.cs b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1119StatementMustNotUseUnnecessaryParenthesis.cs
index 54073d1ca7..796b76e235 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1119StatementMustNotUseUnnecessaryParenthesis.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1119StatementMustNotUseUnnecessaryParenthesis.cs
@@ -10,7 +10,6 @@ namespace StyleCop.Analyzers.MaintainabilityRules
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
-    using StyleCop.Analyzers.DocumentationRules;
     using StyleCop.Analyzers.Helpers;
     using StyleCop.Analyzers.Lightup;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1413UseTrailingCommasInMultiLineInitializers.cs b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1413UseTrailingCommasInMultiLineInitializers.cs
index 706c21503a..2b54492cb4 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1413UseTrailingCommasInMultiLineInitializers.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1413UseTrailingCommasInMultiLineInitializers.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.MaintainabilityRules
 {
     using System;
     using System.Collections.Immutable;
-    using System.Linq;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1414TupleTypesInSignaturesShouldHaveElementNames.cs b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1414TupleTypesInSignaturesShouldHaveElementNames.cs
index 6c50434f60..7006fb08be 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1414TupleTypesInSignaturesShouldHaveElementNames.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1414TupleTypesInSignaturesShouldHaveElementNames.cs
@@ -4,9 +4,7 @@
 namespace StyleCop.Analyzers.MaintainabilityRules
 {
     using System;
-    using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.Text;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace.cs b/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace.cs
index a8ceb359ec..99424ebc2a 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1210UsingDirectivesMustBeOrderedAlphabeticallyByNamespace.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.OrderingRules
     using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.Globalization;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1217UsingStaticDirectivesMustBeOrderedAlphabetically.cs b/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1217UsingStaticDirectivesMustBeOrderedAlphabetically.cs
index 06f9111b68..ccfe7a5d39 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1217UsingStaticDirectivesMustBeOrderedAlphabetically.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/OrderingRules/SA1217UsingStaticDirectivesMustBeOrderedAlphabetically.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.OrderingRules
 {
     using System;
     using System.Collections.Immutable;
-    using System.Globalization;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1130UseLambdaSyntax.cs b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1130UseLambdaSyntax.cs
index 024c6aefa6..f545973f86 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1130UseLambdaSyntax.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1130UseLambdaSyntax.cs
@@ -5,7 +5,6 @@ namespace StyleCop.Analyzers.ReadabilityRules
 {
     using System;
     using System.Collections.Immutable;
-    using System.Linq;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1132DoNotCombineFields.cs b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1132DoNotCombineFields.cs
index 067af39859..e300123091 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1132DoNotCombineFields.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1132DoNotCombineFields.cs
@@ -6,7 +6,6 @@ namespace StyleCop.Analyzers.ReadabilityRules
     using System;
     using System.Collections.Immutable;
     using Microsoft.CodeAnalysis;
-    using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.Helpers;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1141UseTupleSyntax.cs b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1141UseTupleSyntax.cs
index 1fc04ce23e..e2e01d4759 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1141UseTupleSyntax.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1141UseTupleSyntax.cs
@@ -4,9 +4,7 @@
 namespace StyleCop.Analyzers.ReadabilityRules
 {
     using System;
-    using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.Text;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;
     using Microsoft.CodeAnalysis.CSharp.Syntax;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/DocumentationSettings.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/DocumentationSettings.cs
index 1e42367bb7..a3f6c07415 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/DocumentationSettings.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/DocumentationSettings.cs
@@ -3,10 +3,8 @@
 
 namespace StyleCop.Analyzers.Settings.ObjectModel
 {
-    using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
-    using System.Linq;
     using System.Text.RegularExpressions;
     using LightJson;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/NamingSettings.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/NamingSettings.cs
index 6cedae824c..9146fa42e8 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/NamingSettings.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/NamingSettings.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.Settings.ObjectModel
 {
-    using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Linq;
     using System.Text.RegularExpressions;
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/OrderingSettings.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/OrderingSettings.cs
index 650f31e834..e62dd4d3fa 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/OrderingSettings.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Settings/ObjectModel/OrderingSettings.cs
@@ -3,7 +3,6 @@
 
 namespace StyleCop.Analyzers.Settings.ObjectModel
 {
-    using System.Collections.Generic;
     using System.Collections.Immutable;
     using LightJson;
 
diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/SpacingRules/SA1023DereferenceAndAccessOfSymbolsMustBeSpacedCorrectly.cs b/StyleCop.Analyzers/StyleCop.Analyzers/SpacingRules/SA1023DereferenceAndAccessOfSymbolsMustBeSpacedCorrectly.cs
index 71ca17c7ab..b7fdc7c4c9 100644
--- a/StyleCop.Analyzers/StyleCop.Analyzers/SpacingRules/SA1023DereferenceAndAccessOfSymbolsMustBeSpacedCorrectly.cs
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/SpacingRules/SA1023DereferenceAndAccessOfSymbolsMustBeSpacedCorrectly.cs
@@ -4,7 +4,6 @@
 namespace StyleCop.Analyzers.SpacingRules
 {
     using System;
-    using System.Collections.Generic;
     using System.Collections.Immutable;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CSharp;