Revert "Setup JDK roots and initialize JDK_HOME in common core environment"

This reverts commit 05dd4714045494dcc648412t 2ea2179a242991639.

compiler/frontend.java/src/org/jetbrains/kotlin/config/JVMConfigurationKeys.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2017 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -42,9 +42,6 @@ public class JVMConfigurationKeys {
     public static final CompilerConfigurationKey<File> JDK_HOME =
             CompilerConfigurationKey.create("jdk home");
 
-    public static final CompilerConfigurationKey<Boolean> NO_JDK =
-            CompilerConfigurationKey.create("no jdk");
-
     public static final CompilerConfigurationKey<List<KotlinScriptDefinition>> SCRIPT_DEFINITIONS =
             CompilerConfigurationKey.create("script definitions");