Deprecate HAllocateObject in favor of HAllocate.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index c1f24c9ec64c410b601d097e267f8961bf1819e8..3fc0fd85d8f80190d3b7dea5c48be30398cf0b70 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -2388,14 +2388,6 @@ 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()