Remove :libraries:tools:stdlib-compiler-classpath project

It was used as a workaround to allow jvmTarget=1.6 in stdlib.

buildSrc/src/main/kotlin/common-configuration.gradle.kts

@@ -28,8 +28,6 @@ dependencies {
     }
 }
 
-project.applyFixForStdlib16()
-
 apply(from = "$rootDir/gradle/cacheRedirector.gradle.kts")
 project.configureJvmDefaultToolchain()
 project.addEmbeddedConfigurations()
@@ -201,17 +199,6 @@ fun Project.configureKotlinCompilationOptions() {
     }
 }
 
-// Should the workaround be removed ?
-// Still compile stdlib, reflect, kotlin.test and scripting runtimes
-// with JVM target 1.6 to simplify migration from Kotlin 1.6 to 1.7.
-fun Project.applyFixForStdlib16() {
-    plugins.withType<KotlinBasePluginWrapper>() {
-        dependencies {
-            "kotlinCompilerClasspath"(project(":libraries:tools:stdlib-compiler-classpath"))
-        }
-    }
-}
-
 fun Project.configureArtifacts() {
     tasks.withType<Javadoc>().configureEach {
         enabled = false