Remove SVGLangSpace IDL interface

Source/core/svg/SVGSVGElement.idl

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  *
  * 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.
  */
 
 // TODO: no css::ViewCSS available!
 // TODO: Fix SVGSVGElement inheritance (css::DocumentCSS)! 
 // TODO: no events::DocumentEvent available!
 interface SVGSVGElement : SVGStyledElement,
-                          SVGLangSpace,
                           SVGTransformable {
     readonly attribute SVGAnimatedLength x;
     readonly attribute SVGAnimatedLength y;
     readonly attribute SVGAnimatedLength width;
     readonly attribute SVGAnimatedLength height;
              attribute DOMString contentScriptType;
              attribute DOMString contentStyleType;
     readonly attribute SVGRect viewport;
     readonly attribute float pixelUnitToMillimeterX;
     readonly attribute float pixelUnitToMillimeterY;
@@ skipping 32 matching lines @@
     SVGTransform createSVGTransform();
     SVGTransform createSVGTransformFromMatrix([Default=Undefined] optional SVGMatrix matrix);
     Element getElementById([Default=Undefined] optional DOMString elementId);
 };
 
 SVGSVGElement implements SVGExternalResourcesRequired;
 SVGSVGElement implements SVGTests;
 SVGSVGElement implements SVGFitToViewBox;
 SVGSVGElement implements SVGZoomAndPan;