Desugar %DefaultConstructorCallSuper partially in parser.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index aff18f678e2fb850ff49f5452bb5fc1fbc694e59..95696a3c9c1aa788ca359c95bef69a03c03f21c2 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -1176,10 +1176,6 @@ class Runtime : public AllStatic {
       Isolate* isolate, Handle<Object> receiver_obj, Handle<Object> key_obj,
       LanguageMode language_mode);
 
-  // TODO(mstarzinger): Remove this once %DefaultConstructorCallSuper is gone.
-  MUST_USE_RESULT static MaybeHandle<Object> GetPrototype(
-      Isolate* isolate, Handle<Object> object);
-
   enum TypedArrayId {
     // arrayIds below should be synchronized with typedarray.js natives.
     ARRAY_ID_UINT8 = 1,