Remove SVGElementInstance includes

Source/core/svg/SVGGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.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.
  */
 
 #include "config.h"
 
 #include "core/svg/SVGGElement.h"
 
 #include "SVGNames.h"
 #include "core/rendering/svg/RenderSVGHiddenContainer.h"
 #include "core/rendering/svg/RenderSVGResource.h"
 #include "core/rendering/svg/RenderSVGTransformableContainer.h"
-#include "core/svg/SVGElementInstance.h"
 
 namespace WebCore {
 
 SVGGElement::SVGGElement(Document& document, ConstructionType constructionType)
     : SVGGraphicsElement(SVGNames::gTag, document, constructionType)
 {
     ScriptWrappable::init(this);
 }
 
 bool SVGGElement::isSupportedAttribute(const QualifiedName& attrName)
@@ skipping 38 matching lines @@
 }
 
 bool SVGGElement::rendererIsNeeded(const RenderStyle&)
 {
     // Unlike SVGElement::rendererIsNeeded(), we still create renderers, even if
     // display is set to 'none' - which is special to SVG <g> container elements.
     return parentOrShadowHostElement() && parentOrShadowHostElement()->isSVGElement();
 }
 
 }