diff --git a/src/dyn-cancel.c b/src/dyn-cancel.c
deleted file mode 100644
index 85a36458..00000000
--- a/src/dyn-cancel.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/* libunwind - a platform-independent unwind library
-   Copyright (C) 2001-2002 Hewlett-Packard Co
-	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
-
-This file is part of libunwind.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
-
-#include "internal.h"
-
-void
-_U_dyn_cancel (unw_dyn_info_t *di)
-{
-  mutex_lock (&_U_dyn_info_list_lock);
-  {
-    ++_U_dyn_info_list.generation;
-
-    if (di->prev)
-      di->prev->next = di->next;
-    else
-      _U_dyn_info_list.first = di->next;
-
-    if (di->next)
-      di->next->prev = di->prev;
-  }
-  mutex_unlock (&_U_dyn_info_list_lock);
-
-  di->next = di->prev = NULL;
-}