Remove moar unused SVG methods

Source/core/svg/SVGTransformDistance.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.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
@@ skipping 18 matching lines @@
 class SVGTransformDistance {
 public:
     SVGTransformDistance();
     SVGTransformDistance(PassRefPtr<SVGTransform> fromTransform, PassRefPtr<SVGTransform> toTransform);
 
     SVGTransformDistance scaledDistance(float scaleFactor) const;
     PassRefPtr<SVGTransform> addToSVGTransform(PassRefPtr<SVGTransform>) const;
 
     static PassRefPtr<SVGTransform> addSVGTransforms(PassRefPtr<SVGTransform>, PassRefPtr<SVGTransform>, unsigned repeatCount = 1);
 
-    bool isZero() const;
+    float distance() const;
 
-    float distance() const;
 private:
     SVGTransformDistance(SVGTransformType, float angle, float cx, float cy, const AffineTransform&);
 
     SVGTransformType m_transformType;
     float m_angle;
     float m_cx;
     float m_cy;
     AffineTransform m_transform; // for storing scale, translation or matrix transforms
 };
 }
 
 #endif // SVGTransformDistance_h