reverted AllocatrType traits

[[Imported from SVN: r5032]]

common/typetraits.hh

@@ -355,57 +355,6 @@ namespace Dune
   {
     typedef T2 Type;
   };
-
-  /**
-   * @brief provided one allocator, get the same allocator for a different object type
-   *
-   * the resulting type is exported as Type
-   *
-   * this class does not implement anything, it must be specialized
-   * for each allocator class in use
-   */
-
-  template <class A, class T>
-  struct AllocatorType;
-
-  /**
-     @copydoc AllocatorType
-
-     specialization for all allocators of the for ALLOCATOR<TYPE>
-
-     this is expected to work for
-
-     std::allocator
-     __gnu_cxx::new_allocator<T>
-     __gnu_cxx::malloc_allocator<T>
-     __gnu_cxx::__pool_alloc<T>
-     __gnu_cxx::__mt_alloc<T>
-     __gnu_cxx::bitmap_allocator<T>
-     __gnu_cxx::array_allocator<T>
-     __gnu_cxx::throw_allocator<T>
-   */
-  template <template<class> class Allocator, class T1, class T2>
-  struct AllocatorType< Allocator<T1>, T2 >
-  {
-    typedef Allocator<T2> Type;
-  };
-
-#ifdef _DEBUG_ALLOCATOR_H
-  /**
-     @copydoc AllocatorType
-
-     if you want to use this specialization, you have to ensure that
-     <ext/debug_allocator.h> is included before <dune/common/typetraits.hh>
-
-     specialization for __gnu_cxx::debug_allocator< Allocator >
-   */
-  template <class A, class T>
-  struct AllocatorType< __gnu_cxx::debug_allocator<A>, T >
-  {
-    typedef typename __gnu_cxx::debug_allocator< typename AllocatorType<A,T>::Type > Type;
-  };
-#endif
-
   /** @} */
 }
 #endif