diff --git a/include/boost/fusion/sequence/utility/limits.hpp b/include/boost/fusion/sequence/utility/limits.hpp
deleted file mode 100644
index 7f3d0136..00000000
--- a/include/boost/fusion/sequence/utility/limits.hpp
+++ /dev/null
@@ -1,16 +0,0 @@
-//
-//  Copyright (c) 2006 João Abecasis
-//
-//  Distributed under the Boost Software License, Version 1.0. (See
-//  accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#if !defined(BOOST_FUSION_ALGORITHM_INVOCATION_LIMITS_HPP_INCLUDED)
-#define BOOST_FUSION_ALGORITHM_INVOCATION_LIMITS_HPP_INCLUDED
-
-# if !defined(FUSION_MAX_UNPACK_ARG_SIZE)
-#   define FUSION_MAX_UNPACK_ARG_SIZE 10
-# endif
-
-#endif // include guard
diff --git a/include/boost/fusion/sequence/utility/unpack_args.hpp b/include/boost/fusion/sequence/utility/unpack_args.hpp
deleted file mode 100644
index a379a693..00000000
--- a/include/boost/fusion/sequence/utility/unpack_args.hpp
+++ /dev/null
@@ -1,171 +0,0 @@
-//
-//  Copyright (c) 2005, 2006 João Abecasis
-//
-//  Distributed under the Boost Software License, Version 1.0. (See
-//  accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#if !BOOST_PP_IS_ITERATING
-
-# if !defined(BOOST_FUSION_SEQUENCE_UTILITY_UNPACK_ARGS_HPP_INCLUDED)
-# define BOOST_FUSION_SEQUENCE_UTILITY_UNPACK_ARGS_HPP_INCLUDED
-
-#   include <boost/preprocessor/cat.hpp>
-#   include <boost/preprocessor/arithmetic/inc.hpp>
-#   include <boost/preprocessor/arithmetic/dec.hpp>
-#   include <boost/preprocessor/repetition/repeat.hpp>
-#   include <boost/preprocessor/repetition/enum_params.hpp>
-#   include <boost/preprocessor/iteration/iterate.hpp>
-#   include <boost/utility/result_of.hpp>
-#   include <boost/mpl/int.hpp>
-#   include <boost/mpl/eval_if.hpp>
-#   include <boost/mpl/identity.hpp>
-#   include <boost/type_traits/add_pointer.hpp>
-#   include <boost/type_traits/is_function.hpp>
-#   include <boost/type_traits/is_pointer.hpp>
-#   include <boost/type_traits/remove_cv.hpp>
-#   include <boost/fusion/sequence/intrinsic/begin.hpp>
-#   include <boost/fusion/sequence/intrinsic/size.hpp>
-#   include <boost/fusion/iterator/next.hpp>
-#   include <boost/fusion/iterator/deref.hpp>
-#   include <boost/fusion/sequence/utility/limits.hpp>
-
-namespace boost { namespace fusion
-{
-    namespace detail
-    {
-        template <class F>
-        struct unpack_args_impl_helper
-        {
-            typedef typename remove_cv<F>::type f_nocv;
-
-            typedef 
-                typename mpl::eval_if<
-                    is_pointer<f_nocv>,
-                    mpl::identity<f_nocv>,
-                    mpl::eval_if<
-                        is_function<f_nocv>,
-                        add_pointer<f_nocv>,
-                        mpl::identity<F>
-                    >
-                >::type
-            type;
-        };
-
-        template <
-            class F,
-            class Sequence,
-            class F_ = typename unpack_args_impl_helper<F>::type,
-            class Size = mpl::int_<result_of::size<Sequence>::value>
-        >
-        struct unpack_args_impl;
-
-        template <class F, class Sequence, class F_>
-        struct unpack_args_impl<F, Sequence, F_, mpl::int_<0> >
-        {
-            typedef typename boost::result_of<F_()>::type type;
-
-            static type call(F & f, Sequence &)
-            {
-                return f();
-            }
-        };
-
-#   define BOOST_FUSION_next_iterator(z, n, data)                               \
-    typedef typename fusion::result_of::next<BOOST_PP_CAT(I, n)>::type          \
-        BOOST_PP_CAT(I, BOOST_PP_INC(n));
-
-#   define BOOST_FUSION_deref_iterator(z, n, data)                              \
-    typedef typename fusion::result_of::deref<BOOST_PP_CAT(I, BOOST_PP_INC(n))  \
-        >::type BOOST_PP_CAT(T, BOOST_PP_INC(n));
-
-#   define BOOST_FUSION_next_call_iterator(z, n, data)                          \
-    BOOST_PP_CAT(I, BOOST_PP_INC(n)) BOOST_PP_CAT(i, BOOST_PP_INC(n))           \
-        = fusion::next(BOOST_PP_CAT(i, n));
-
-#   define BOOST_FUSION_n BOOST_PP_ITERATION()
-
-#   define BOOST_PP_ITERATION_PARAMS_1 (3, (1, FUSION_MAX_UNPACK_ARG_SIZE,      \
-      <boost/fusion/sequence/utility/unpack_args.hpp>))
-
-#   include BOOST_PP_ITERATE()
-
-#   undef BOOST_FUSION_next_iterator
-#   undef BOOST_FUSION_deref_iterator
-#   undef BOOST_FUSION_next_call_iterator
-#   undef BOOST_FUSION_n
-
-#   undef BOOST_PP_ITERATION_PARAMS_1
-
-    } // namespace detail
-
-    namespace result_of
-    {
-
-        template <class F, class Sequence>
-        struct unpack_args
-            : detail::unpack_args_impl<F, Sequence>
-        {
-        };
-
-    } // namespace result_of
-
-    template <class F, class Sequence>
-    inline typename result_of::unpack_args<F, Sequence>::type
-    unpack_args(F & f, Sequence & seq)
-    {
-        return result_of::unpack_args<F, Sequence>::call(f, seq);
-    }
-
-    template <class F, class Sequence>
-    inline typename result_of::unpack_args<F const, Sequence>::type
-    unpack_args(F const & f, Sequence & seq)
-    {
-        return result_of::unpack_args<F const, Sequence>::call(f, seq);
-    }
-
-    template <class F, class Sequence>
-    inline typename result_of::unpack_args<F, Sequence const>::type
-    unpack_args(F & f, Sequence const & seq)
-    {
-        return result_of::unpack_args<F, Sequence const>::call(f, seq);
-    }
-
-    template <class F, class Sequence>
-    inline typename result_of::unpack_args<F const, Sequence const>::type
-    unpack_args(F const & f, Sequence const & seq)
-    {
-        return result_of::unpack_args<F const, Sequence const>::call(f, seq);
-    }
-
-}} // namespace boost::fusion
-
-# endif // include guard
-
-#else // BOOST_PP_IS_ITERATING
-
-    template <class F, class Sequence, class F_>
-    struct unpack_args_impl<F, Sequence, F_, mpl::int_<BOOST_FUSION_n> >
-    {
-        typedef typename fusion::result_of::begin<Sequence>::type I0;
-        typedef typename fusion::result_of::deref<I0>::type T0;
-
-        BOOST_PP_REPEAT(BOOST_FUSION_n, BOOST_FUSION_next_iterator, ~)
-        BOOST_PP_REPEAT(BOOST_FUSION_n, BOOST_FUSION_deref_iterator, ~)
-
-        typedef typename boost::result_of<
-            F_( BOOST_PP_ENUM_PARAMS(BOOST_FUSION_n, T) )
-        >::type type;
-
-        static type call(F & f, Sequence & seq)
-        {
-            I0 i0 = fusion::begin(seq);
-
-            BOOST_PP_REPEAT(BOOST_PP_DEC(BOOST_FUSION_n), BOOST_FUSION_next_call_iterator, ~)
-
-            return f( BOOST_PP_ENUM_PARAMS(BOOST_FUSION_n, *i) );
-        }
-    };
-
-#endif // BOOST_PP_IS_ITERATING