Partial revert of "Next bunch of fixes for check elimination".

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 0b9411bf7776cc8053e8833ec878ce0d9e2f229a..1fd44056e89e484fafb59b76f86ecb203a2f8204 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1884,13 +1884,6 @@ void LCodeGen::DoConstantE(LConstantE* instr) {
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Handle<Object> object = instr->value(isolate());
   AllowDeferredHandleDereference smi_check;
-  if (instr->hydrogen()->HasObjectMap()) {
-    Handle<Map> object_map = instr->hydrogen()->ObjectMap().handle();
-    ASSERT(object->IsHeapObject());
-    ASSERT(!object_map->is_stable() ||
-           *object_map == Handle<HeapObject>::cast(object)->map());
-    USE(object_map);
-  }
   __ Move(ToRegister(instr->result()), object);
 }