Deprecate HAllocateObject in favor of HAllocate.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 2325064de2b3b5a8808570eebf8b6e6ebed90dd2..795f58f450bf3b31ea17a80e190efb792831c448 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2263,14 +2263,6 @@ LInstruction* LChunkBuilder::DoStringLength(HStringLength* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoAllocateObject(HAllocateObject* instr) {
-  info()->MarkAsDeferredCalling();
-  LAllocateObject* result =
-      new(zone()) LAllocateObject(TempRegister(), TempRegister());
-  return AssignPointerMap(DefineAsRegister(result));
-}
-
-
 LInstruction* LChunkBuilder::DoAllocate(HAllocate* instr) {
   info()->MarkAsDeferredCalling();
   LOperand* size = instr->size()->IsConstant()