Remove dependency on TypeTraits

include/boost/unordered/hash_traits.hpp

@@ -11,8 +11,7 @@
 #ifndef BOOST_UNORDERED_HASH_TRAITS_HPP
 #define BOOST_UNORDERED_HASH_TRAITS_HPP
 
-#include <boost/type_traits/make_void.hpp>
-#include <boost/type_traits/integral_constant.hpp>
+#include <boost/unordered/detail/type_traits.hpp>
 
 namespace boost{
 namespace unordered{
@@ -20,12 +19,12 @@ namespace unordered{
 namespace detail{
 
 template<typename Hash,typename=void>
-struct hash_is_avalanching_impl: boost::false_type{};
+struct hash_is_avalanching_impl: std::false_type{};
 
 template<typename Hash>
 struct hash_is_avalanching_impl<Hash,
-  typename boost::make_void<typename Hash::is_avalanching>::type>:
-    boost::true_type{};
+  typename boost::unordered::detail::make_void<typename Hash::is_avalanching>::type>:
+    std::true_type{};
 
 } /* namespace detail */