Excavator: Add the gradle-idea-configuration plugin to the build (#652)

Author: svc-excavator-bot

build.gradle

@@ -14,7 +14,6 @@ buildscript {
         classpath 'com.palantir.gradle.consistentversions:gradle-consistent-versions:2.32.0'
         classpath 'com.palantir.baseline:gradle-baseline-java:6.16.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:3.2.0'
-        classpath 'com.palantir.gradle.gradleideaconfiguration:gradle-idea-configuration:0.1.0'
         classpath 'gradle.plugin.org.inferred:gradle-processors:3.7.0'
         classpath 'org.unbroken-dome.gradle-plugins:gradle-testsets-plugin:4.1.0'
     }
@@ -24,7 +23,6 @@ apply plugin: 'com.palantir.external-publish'
 apply plugin: 'com.palantir.failure-reports'
 apply plugin: 'com.palantir.consistent-versions'
 apply plugin: 'com.palantir.git-version'
-apply plugin: 'com.palantir.idea-configuration'
 apply plugin: 'com.palantir.jdks'
 apply plugin: 'com.palantir.baseline'
 apply plugin: 'com.palantir.baseline-java-versions'