Remove bindings-dart

sky/engine/bindings-dart/core/dart/DartMutationCallback.cpp

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#include "config.h"
-#include "bindings/core/dart/DartMutationCallback.h"
-
-#include "bindings/core/dart/DartMutationObserver.h"
-#include "bindings/core/dart/DartMutationRecord.h"
-
-namespace blink {
-
-void DartMutationCallback::call(const Vector<RefPtr<MutationRecord> >& mutations, MutationObserver* observer)
-{
-    if (!m_callback.isIsolateAlive())
-        return;
-
-    DartIsolateScope scope(m_callback.isolate());
-    DartApiScope apiScope;
-
-    Dart_Handle arguments[] = {
-        DartDOMWrapper::vectorToDart<DartMutationRecord>(mutations),
-        DartMutationObserver::toDart(observer)
-    };
-    m_callback.handleEvent(2, arguments);
-}
-
-}