Move CoroutineLanguageVersionSettingsUtil to 'config'

This allows to get rid of dependency of 'util' on 'descriptors'.

compiler/util/build.gradle.kts

@@ -1,4 +1,3 @@
-
 plugins {
     kotlin("jvm")
     id("jps-compatible")
@@ -7,7 +6,6 @@ plugins {
 dependencies {
     api(kotlinStdlib())
     api(project(":compiler:compiler.version"))
-    api(project(":core:descriptors"))
 
     compileOnly(project(":kotlin-reflect-api"))
     compileOnly(intellijCoreDep()) { includeJars("intellij-core") }
@@ -22,4 +20,3 @@ sourceSets {
     }
     "test" {}
 }
-