Remove SVG1.1 kerning property

Source/core/css/CSSProperty.cpp

 /**
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
  *
  * 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,
@@ skipping 264 matching lines @@
     case CSSPropertyFillRule:
     case CSSPropertyFont:
     case CSSPropertyFontFamily:
     case CSSPropertyFontSize:
     case CSSPropertyFontStyle:
     case CSSPropertyFontVariant:
     case CSSPropertyFontWeight:
     case CSSPropertyGlyphOrientationHorizontal:
     case CSSPropertyGlyphOrientationVertical:
     case CSSPropertyImageRendering:
-    case CSSPropertyKerning:
     case CSSPropertyLetterSpacing:
     case CSSPropertyLineHeight:
     case CSSPropertyListStyle:
     case CSSPropertyListStyleImage:
     case CSSPropertyListStylePosition:
     case CSSPropertyListStyleType:
     case CSSPropertyMarker:
     case CSSPropertyMarkerEnd:
     case CSSPropertyMarkerMid:
     case CSSPropertyMarkerStart:
@@ skipping 383 matching lines @@
         return false;
     case CSSPropertyInvalid:
         ASSERT_NOT_REACHED();
         return false;
     }
     ASSERT_NOT_REACHED();
     return false;
 }
 
 } // namespace WebCore