diff --git a/src/util/set-types.h b/src/util/set-types.h
--- a/src/util/set-types.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef SEEN_SET_TYPES_H
-#define SEEN_SET_TYPES_H
-
-
-/** @file
- * Simple wrapper to disambiguate hash/unordered lists & sets.
- */
-/* Authors:
- * Jon A. Cruz <jon@joncruz.org>
- *
- * Copyright (C) 2010 Authors
- * Released under GNU GPL, read the file 'COPYING' for more information
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#if defined(HAVE_TR1_UNORDERED_SET)
-
-# include <tr1/unordered_set>
-# include <tr1/unordered_map>
-# define optim_set std::tr1::unordered_set
-# define optim_map std::tr1::unordered_map
-
-// TODO test on platform with this detected:
-//#elif defined(HAVE_UNORDERED_SET)
-//
-//# include <unordered_set>
-//# include <unordered_map>
-//#define optim_set std::unordered_set
-//#define optim_map std::unordered_map
-
-#elif defined(HAVE_EXT_HASH_SET)
-
-# include <ext/hash_set>
-# include <ext/hash_map>
-# define optim_set __gnu_cxx::hash_set
-# define optim_map __gnu_cxx::hash_map
-# define USE_GNU_HASHES 1
-
-#endif
-
-
-#endif // SEEN_SET_TYPES_H
-/*
- Local Variables:
- mode:c++
- c-file-style:"stroustrup"
- c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
- indent-tabs-mode:nil
- fill-column:99
- End:
-*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :