Add file accidentally omitted from last change.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/runtime.h

@@ -66,10 +66,6 @@ namespace v8 { namespace internal {
   F(PushIfAbsent, 2) \
   F(ArrayConcat, 1) \
   \
-  /* ConsStrings */ \
-  F(ConsStringFst, 1) \
-  F(ConsStringSnd, 1) \
-  \
   /* Conversions */ \
   F(ToBool, 1) \
   F(Typeof, 1) \