MIPS: Remove keyed_store_calling convention and friends.

src/mips64/stub-cache-mips64.cc

Index: src/mips64/stub-cache-mips64.cc
diff --git a/src/mips64/stub-cache-mips64.cc b/src/mips64/stub-cache-mips64.cc
index ac3a5cf3c4deb71cb0e1456d5fe9e076cc40c038..25e2823ffb4d116811ea3f4c00eaa68f4d84a396 100644
--- a/src/mips64/stub-cache-mips64.cc
+++ b/src/mips64/stub-cache-mips64.cc
@@ -1157,21 +1157,12 @@ Register* PropertyAccessCompiler::store_calling_convention() {
   // receiver, name, scratch1, scratch2, scratch3.
   Register receiver = StoreIC::ReceiverRegister();
   Register name = StoreIC::NameRegister();
+  ASSERT(a3.is(KeyedStoreIC::MapRegister()));
   static Register registers[] = { receiver, name, a3, a4, a5 };
   return registers;
 }
 
 
-Register* PropertyAccessCompiler::keyed_store_calling_convention() {
-  // receiver, name, scratch1/map, scratch2, scratch3.
-  Register receiver = KeyedStoreIC::ReceiverRegister();
-  Register name = KeyedStoreIC::NameRegister();
-  Register map = KeyedStoreIC::MapRegister();
-  static Register registers[] = { receiver, name, map, a4, a5 };
-  return registers;
-}
-
-
 Register NamedStoreHandlerCompiler::value() { return StoreIC::ValueRegister(); }