Remove unused SVGTextMetrics constructor

third_party/WebKit/Source/core/layout/svg/SVGTextMetrics.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved.
  *
  * 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 "core/layout/svg/SVGTextMetrics.h"
 
 #include "platform/fonts/FontOrientation.h"
 
 namespace blink {
 
-SVGTextMetrics::SVGTextMetrics() : m_width(0), m_height(0), m_length(0) {}
-
 SVGTextMetrics::SVGTextMetrics(unsigned length, float width, float height)
     : m_width(width), m_height(height), m_length(length) {}
 
 SVGTextMetrics::SVGTextMetrics(SVGTextMetrics::MetricsType)
     : SVGTextMetrics(1, 0, 0) {}
 
 float SVGTextMetrics::advance(FontOrientation orientation) const {
   switch (orientation) {
     case FontOrientation::Horizontal:
     case FontOrientation::VerticalRotated:
       return width();
     case FontOrientation::VerticalUpright:
       return height();
     default:
       ASSERT_NOT_REACHED();
       return width();
   }
 }
 
 }  // namespace blink