Remove HasInlinedTraceMethod<T>.

Source/wtf/Vector.h

 /*
  *  Copyright (C) 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
@@ skipping 777 matching lines @@
         template<typename Iterator> void appendRange(Iterator start, Iterator end);
 
         void swap(Vector& other)
         {
             Base::swapVectorBuffer(other);
             std::swap(m_size, other.m_size);
         }
 
         void reverse();
 
-        typedef int HasInlinedTraceMethodMarker;
         template<typename VisitorDispatcher> void trace(VisitorDispatcher);
 
     private:
         void expandCapacity(size_t newMinCapacity);
         const T* expandCapacity(size_t newMinCapacity, const T*);
         template<typename U> U* expandCapacity(size_t newMinCapacity, U*);
         void shrinkCapacity(size_t newCapacity);
         template<typename U> void appendSlowCase(const U&);
 
         using Base::m_size;
@@ skipping 528 matching lines @@
     struct NeedsTracing<Vector<T, N>> {
         static const bool value = false;
     };
 #endif
 
 } // namespace WTF
 
 using WTF::Vector;
 
 #endif // WTF_Vector_h