Remove support for <animateColor>.

Source/core/svg/SVGAnimateColorElement.h

-/*
- * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef SVGAnimateColorElement_h
-#define SVGAnimateColorElement_h
-
-#include "core/svg/SVGAnimateElement.h"
-
-namespace WebCore {
-
-class SVGAnimateColorElement FINAL : public SVGAnimateElement {
-public:
-    static PassRefPtr<SVGAnimateColorElement> create(Document&);
-
-private:
-    explicit SVGAnimateColorElement(Document&);
-};
-
-} // namespace WebCore
-
-#endif // SVGAnimateColorElement_h