Revert "ES6: Add support for Map/Set forEach"

src/runtime.h

Index: src/runtime.h
diff --git a/src/runtime.h b/src/runtime.h
index a32db2c9863aabef3ac81994209d9eb322fb6220..5b92b12c5ec19b9614f6b32b9fdf98d4f5ebef5c 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -297,25 +297,15 @@ namespace internal {
   F(SetAdd, 2, 1) \
   F(SetHas, 2, 1) \
   F(SetDelete, 2, 1) \
-  F(SetClear, 1, 1) \
   F(SetGetSize, 1, 1) \
-  F(SetCreateIterator, 2, 1) \
-  \
-  F(SetIteratorNext, 1, 1) \
-  F(SetIteratorClose, 1, 1) \
   \
   /* Harmony maps */ \
   F(MapInitialize, 1, 1) \
   F(MapGet, 2, 1) \
   F(MapHas, 2, 1) \
   F(MapDelete, 2, 1) \
-  F(MapClear, 1, 1) \
   F(MapSet, 3, 1) \
   F(MapGetSize, 1, 1) \
-  F(MapCreateIterator, 2, 1) \
-  \
-  F(MapIteratorNext, 1, 1) \
-  F(MapIteratorClose, 1, 1) \
   \
   /* Harmony weak maps and sets */ \
   F(WeakCollectionInitialize, 1, 1) \