Remove SVG1.1 kerning property

Source/core/animation/css/CSSAnimations.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 727 matching lines @@
     case CSSPropertyFill:
     case CSSPropertyFillOpacity:
     case CSSPropertyFlexBasis:
     case CSSPropertyFlexGrow:
     case CSSPropertyFlexShrink:
     case CSSPropertyFloodColor:
     case CSSPropertyFloodOpacity:
     case CSSPropertyFontSize:
     case CSSPropertyFontWeight:
     case CSSPropertyHeight:
-    case CSSPropertyKerning:
     case CSSPropertyLeft:
     case CSSPropertyLetterSpacing:
     case CSSPropertyLightingColor:
     case CSSPropertyLineHeight:
     case CSSPropertyListStyleImage:
     case CSSPropertyMarginBottom:
     case CSSPropertyMarginLeft:
     case CSSPropertyMarginRight:
     case CSSPropertyMarginTop:
     case CSSPropertyMaxHeight:
@@ skipping 92 matching lines @@
 }
 
 void CSSAnimationUpdate::trace(Visitor* visitor)
 {
     visitor->trace(m_newTransitions);
     visitor->trace(m_activeInterpolationsForAnimations);
     visitor->trace(m_activeInterpolationsForTransitions);
 }
 
 } // namespace WebCore