Remove unused includes from core/platform .cpp files

Source/core/platform/graphics/transforms/TranslateTransformOperation.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. 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 "config.h"
-#include "core/platform/FloatConversion.h"
 #include "core/platform/graphics/transforms/TranslateTransformOperation.h"
 
 namespace WebCore {
 
 PassRefPtr<TransformOperation> TranslateTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
 {
     if (from && !from->isSameType(*this))
         return this;
     
     if (blendToIdentity)
         return TranslateTransformOperation::create(Length(m_x.type()).blend(m_x, progress), 
                                                    Length(m_y.type()).blend(m_y, progress), 
                                                    Length(m_z.type()).blend(m_z, progress), m_type);
 
     const TranslateTransformOperation* fromOp = static_cast<const TranslateTransformOperation*>(from);
     Length fromX = fromOp ? fromOp->m_x : Length(m_x.type());
     Length fromY = fromOp ? fromOp->m_y : Length(m_y.type());
     Length fromZ = fromOp ? fromOp->m_z : Length(m_z.type());
     return TranslateTransformOperation::create(m_x.blend(fromX, progress), m_y.blend(fromY, progress), m_z.blend(fromZ, progress), m_type);
 }
 
 } // namespace WebCore