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

src/mips64/macro-assembler-mips64.cc

Index: src/mips64/macro-assembler-mips64.cc
diff --git a/src/mips64/macro-assembler-mips64.cc b/src/mips64/macro-assembler-mips64.cc
index 916231b2b4ed931d6d77aa97efe68202509abd3b..c68f3e5a7819f69ab1d8d0d52fce913c45c4900e 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -5853,18 +5853,6 @@ void MacroAssembler::CheckPageFlag(
 }
 
 
-void MacroAssembler::CheckMapDeprecated(Handle<Map> map,
-                                        Register scratch,
-                                        Label* if_deprecated) {
-  if (map->CanBeDeprecated()) {
-    li(scratch, Operand(map));
-    ld(scratch, FieldMemOperand(scratch, Map::kBitField3Offset));
-    And(scratch, scratch, Operand(Map::Deprecated::kMask));
-    Branch(if_deprecated, ne, scratch, Operand(zero_reg));
-  }
-}
-
-
 void MacroAssembler::JumpIfBlack(Register object,
                                  Register scratch0,
                                  Register scratch1,