Revert of [Atomics] code stubs for atomic operations

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
@@ skipping 2424 matching lines @@
                       factory()->search_symbol());
   InstallPublicSymbol(factory(), native_context(), "split",
                       factory()->split_symbol());
 }
 
 
 void Genesis::InitializeGlobal_harmony_sharedarraybuffer() {
   if (!FLAG_harmony_sharedarraybuffer) return;
 
   Handle<JSGlobalObject> global(native_context()->global_object());
-  Isolate* isolate = global->GetIsolate();
-  Factory* factory = isolate->factory();
-
   Handle<JSFunction> shared_array_buffer_fun =
       InstallArrayBuffer(global, "SharedArrayBuffer");
   native_context()->set_shared_array_buffer_fun(*shared_array_buffer_fun);
-
-  Handle<String> name = factory->InternalizeUtf8String("Atomics");
-  Handle<JSFunction> cons = factory->NewFunction(name);
-  JSFunction::SetInstancePrototype(
-      cons,
-      Handle<Object>(native_context()->initial_object_prototype(), isolate));
-  Handle<JSObject> atomics_object = factory->NewJSObject(cons, TENURED);
-  DCHECK(atomics_object->IsJSObject());
-  JSObject::AddProperty(global, name, atomics_object, DONT_ENUM);
-
-  SimpleInstallFunction(atomics_object, factory->InternalizeUtf8String("load"),
-                        Builtins::kAtomicsLoadCheck, 2, true);
 }
 
 
 void Genesis::InitializeGlobal_harmony_simd() {
   if (!FLAG_harmony_simd) return;
 
   Handle<JSGlobalObject> global(
       JSGlobalObject::cast(native_context()->global_object()));
   Isolate* isolate = global->GetIsolate();
   Factory* factory = isolate->factory();
@@ skipping 1169 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8