Revert of for-of should throw if result object is not an object

src/runtime/runtime-internal.cc

Index: src/runtime/runtime-internal.cc
diff --git a/src/runtime/runtime-internal.cc b/src/runtime/runtime-internal.cc
index 33234cd19f73b7b582a201a6c9158f349376ca36..50b61921f59ed8916841e8a4edfd404a3b66208d 100644
--- a/src/runtime/runtime-internal.cc
+++ b/src/runtime/runtime-internal.cc
@@ -52,16 +52,6 @@
   CONVERT_ARG_HANDLE_CHECKED(Object, name, 0);
   THROW_NEW_ERROR_RETURN_FAILURE(
       isolate, NewReferenceError("not_defined", HandleVector(&name, 1)));
-}
-
-
-RUNTIME_FUNCTION(Runtime_ThrowIteratorResultNotAnObject) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, value, 0);
-  THROW_NEW_ERROR_RETURN_FAILURE(
-      isolate,
-      NewTypeError("iterator_result_not_an_object", HandleVector(&value, 1)));
 }