Fix IDE0004 for object comparison (#110206)

* Fix `IDE0004` for object comparison

* revert `src/libraries/System.Private.CoreLib/src/System/RuntimeType.cs`

Author: xtqqczze

src/libraries/System.Private.CoreLib/src/System/Reflection/CustomAttributeData.cs

@@ -76,8 +76,6 @@ public override string ToString()
 
             return vsb.ToString();
         }
-        public override int GetHashCode() => base.GetHashCode();
-        public override bool Equals(object? obj) => obj == (object)this;
         #endregion
 
         #region Public Members

src/libraries/System.Private.CoreLib/src/System/String.Comparison.cs

@@ -539,7 +539,7 @@ public bool EndsWith(string value, StringComparison comparisonType)
         {
             ArgumentNullException.ThrowIfNull(value);
 
-            if ((object)this == (object)value)
+            if (ReferenceEquals(this, value))
             {
                 CheckStringComparison(comparisonType);
                 return true;
@@ -580,7 +580,7 @@ public bool EndsWith(string value, bool ignoreCase, CultureInfo? culture)
         {
             ArgumentNullException.ThrowIfNull(value);
 
-            if ((object)this == (object)value)
+            if (ReferenceEquals(this, value))
             {
                 return true;
             }
@@ -1108,7 +1108,7 @@ public bool StartsWith(string value, StringComparison comparisonType)
         {
             ArgumentNullException.ThrowIfNull(value);
 
-            if ((object)this == (object)value)
+            if (ReferenceEquals(this, value))
             {
                 CheckStringComparison(comparisonType);
                 return true;
@@ -1158,7 +1158,7 @@ public bool StartsWith(string value, bool ignoreCase, CultureInfo? culture)
         {
             ArgumentNullException.ThrowIfNull(value);
 
-            if ((object)this == (object)value)
+            if (ReferenceEquals(this, value))
             {
                 return true;
             }