MIPS: Use weak cells to embed maps in store handler.

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index 8fe546d39d1ebac76589eb289aff4ae61c3b9d49..b0316d1fb0f1f6bad72eb18590f5c7979c8f51cb 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -336,10 +336,6 @@ class MacroAssembler: public Assembler {
                      Condition cc,
                      Label* condition_met);
 
-  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 it will be clobbered.
   void JumpIfNotInNewSpace(Register object,