ServiceWorker, remove old Cache API implementation to make way for the polyfill.

Source/modules/serviceworkers/Cache.cpp

-// Copyright 2014 The Chromium 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 "config.h"
-#include "modules/serviceworkers/Cache.h"
-
-#include "bindings/v8/ScriptPromise.h"
-#include "bindings/v8/ScriptPromiseResolver.h"
-#include "core/dom/DOMError.h"
-#include "core/dom/ExceptionCode.h"
-#include "platform/NotImplemented.h"
-
-namespace WebCore {
-
-PassRefPtr<Cache> Cache::create(const Vector<String>& urlStrings)
-{
-    RefPtr<Cache> cache = adoptRef(new Cache);
-    // FIXME: Implement.
-    notImplemented();
-    return cache;
-}
-
-Cache::~Cache()
-{
-}
-
-ScriptPromise Cache::match(ScriptState* scriptState, const String& urlString)
-{
-    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
-    ScriptPromise promise = resolver->promise();
-
-    // FIXME: Implement.
-    notImplemented();
-    resolver->reject(DOMError::create(NotSupportedError));
-    return promise;
-}
-
-ScriptPromise Cache::ready(ScriptState* scriptState)
-{
-    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
-    ScriptPromise promise = resolver->promise();
-
-    // FIXME: Implement.
-    notImplemented();
-    resolver->reject(DOMError::create(NotSupportedError));
-    return promise;
-}
-
-Cache::Cache()
-{
-    ScriptWrappable::init(this);
-}
-
-} // namespace WebCore