Clean scripting plugin options and classpath on importing from gradle

should prevent problems that may appear if JPS will try to load
gradle scripting subplugin

(cherrypicked with update from 1.2.50)

plugins/scripting/scripting-idea/build.gradle.kts

@@ -8,6 +8,9 @@ plugins {
 
 dependencies {
     compile(project(":kotlin-scripting-compiler"))
+    compileOnly(project(":idea:idea-gradle"))
+    compileOnly(project(":idea:idea-core"))
+    compileOnly(intellijDep())
 }
 
 sourceSets {