Remove rest of whitespace on override or implement to insert generated at caret offset

idea/testData/codeInsight/overrideImplement/javaInterfaceMethod/foo/Impl.kt.after

@@ -1,7 +1,6 @@
 import foo.Intf
 
 class Impl(): Intf {
-
     override fun getFooBar(): String? {
         throw UnsupportedOperationException()
     }