Remove platform-specific dead code for KeyedStores

src/stub-cache.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1837 matching lines @@
   // Return the generated code.
   return GetICCode(kind(), Code::NORMAL, factory()->empty_string());
 }
 
 
 Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
     Handle<Map> receiver_map) {
   ElementsKind elements_kind = receiver_map->elements_kind();
   bool is_jsarray = receiver_map->instance_type() == JS_ARRAY_TYPE;
   Handle<Code> stub;
-  if (FLAG_compiled_keyed_stores &&
-      (receiver_map->has_fast_elements() ||
-       receiver_map->has_external_array_elements())) {
+  if (receiver_map->has_fast_elements() ||
+      receiver_map->has_external_array_elements()) {
     stub = KeyedStoreFastElementStub(
         is_jsarray,
         elements_kind,
         store_mode_).GetCode(isolate());
   } else {
     stub = KeyedStoreElementStub(is_jsarray,
                                  elements_kind,
                                  store_mode_).GetCode(isolate());
   }
 
@@ skipping 120 matching lines @@
     // transitions are still important for performance.
     bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
     ElementsKind elements_kind = receiver_map->elements_kind();
     if (!transitioned_map.is_null()) {
       cached_stub = ElementsTransitionAndStoreStub(
           elements_kind,
           transitioned_map->elements_kind(),
           is_js_array,
           store_mode_).GetCode(isolate());
     } else {
-      if (FLAG_compiled_keyed_stores &&
-          (receiver_map->has_fast_elements() ||
-           receiver_map->has_external_array_elements())) {
+      if (receiver_map->has_fast_elements() ||
+          receiver_map->has_external_array_elements()) {
         cached_stub = KeyedStoreFastElementStub(
             is_js_array,
             elements_kind,
             store_mode_).GetCode(isolate());
       } else {
         cached_stub = KeyedStoreElementStub(
             is_js_array,
             elements_kind,
             store_mode_).GetCode(isolate());
       }
@@ skipping 177 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal