Remove SVG1.1 kerning property

Source/core/css/resolver/AnimatedStyleBuilder.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 360 matching lines @@
         return;
     case CSSPropertyFontSize:
         style->setFontSize(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0));
         return;
     case CSSPropertyFontWeight:
         style->setFontWeight(animatableValueToFontWeight(value));
         return;
     case CSSPropertyHeight:
         style->setHeight(animatableValueToLength(value, state, NonNegativeValues));
         return;
-    case CSSPropertyKerning:
-        style->setKerning(toAnimatableSVGLength(value)->toSVGLength());
-        return;
     case CSSPropertyLeft:
         style->setLeft(animatableValueToLength(value, state));
         return;
     case CSSPropertyLightingColor:
         style->setLightingColor(toAnimatableColor(value)->color());
         return;
     case CSSPropertyLineHeight:
         if (value->isLength())
             style->setLineHeight(animatableValueToLength(value, state, NonNegativeValues));
         else
@@ skipping 234 matching lines @@
         return;
     case CSSPropertyZoom:
         style->setZoom(clampTo<float>(toAnimatableDouble(value)->toDouble(), std::numeric_limits<float>::denorm_min()));
         return;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace WebCore