Remove comments from function/property implementation template

#KT-18539 Fixed

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionFunction.kt.after

@@ -10,5 +10,5 @@ fun A.test() {
 }
 
 private fun A.foo(n: Int): Boolean {
-    TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    TODO("Not yet implemented")
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionLambda.kt.after

@@ -13,5 +13,5 @@ fun test() {
 }
 
 private fun A.foo(n: Int): Boolean {
-    TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    TODO("Not yet implemented")
 }

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionPropertyGetter.kt.after

@@ -1,6 +1,6 @@
 private val A.foo: Boolean
     get() {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        TODO("Not yet implemented")
     }
 
 // "Create extension property 'A.foo'" "true"

idea/testData/quickfix/createFromUsage/createFunction/call/extensionByExtensionReceiver/extensionPropertySetter.kt.after

@@ -1,6 +1,6 @@
 private var A.foo: Boolean
     get() {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        TODO("Not yet implemented")
     }
     set() {}