Remove comments from function/property implementation template

#KT-18539 Fixed

idea/testData/multiModuleQuickFix/other/implementMembersInImplClassNonImplInheritor/jvm/jvm.kt.after

@@ -7,6 +7,6 @@ abstract actual class Bar {
 
 class X : Bar() {
     override fun foo() {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        TODO("Not yet implemented")
     }
 }