Use weak cells to embed maps in store handler.

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 158f1b18dba81d62287014ca4b9c1c08d1a3afc9..d4f8f7bf1c6d5c2afc3efd724f4c18833e1b9a40 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -94,10 +94,6 @@ class MacroAssembler: public Assembler {
       Label* condition_met,
       Label::Distance condition_met_distance = Label::kFar);
 
-  void CheckMapDeprecated(Handle<Map> map,
-                          Register scratch,
-                          Label* if_deprecated);
-
   // Check if object is in new space.  Jumps if the object is not in new space.
   // The register scratch can be object itself, but scratch will be clobbered.
   void JumpIfNotInNewSpace(Register object,