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diff --git a/lib/unlinkdir.c b/lib/unlinkdir.c
deleted file mode 100644
index 12e669e7..00000000
--- a/lib/unlinkdir.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* unlinkdir.c - determine (and maybe change) whether we can unlink directories
-
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Paul Eggert and Jim Meyering.  */
-
-#include <config.h>
-
-#include "unlinkdir.h"
-
-#if HAVE_PRIV_H
-# include <priv.h>
-#endif
-#include <unistd.h>
-
-#if ! UNLINK_CANNOT_UNLINK_DIR
-
-/* Return true if we cannot unlink directories, false if we might be
-   able to unlink directories.  If possible, tell the kernel we don't
-   want to be able to unlink directories, so that we can return true.  */
-
-bool
-cannot_unlink_dir (void)
-{
-  static bool initialized;
-  static bool cannot;
-
-  if (! initialized)
-    {
-# if defined PRIV_EFFECTIVE && defined PRIV_SYS_LINKDIR
-      /* We might be able to unlink directories if we cannot
-	 determine our privileges, or if we have the
-	 PRIV_SYS_LINKDIR privilege and cannot delete it.  */
-      priv_set_t *pset = priv_allocset ();
-      if (pset)
-	{
-	  cannot =
-	    (getppriv (PRIV_EFFECTIVE, pset) == 0
-	     && (! priv_ismember (pset, PRIV_SYS_LINKDIR)
-		 || (priv_delset (pset, PRIV_SYS_LINKDIR) == 0
-		     && setppriv (PRIV_SET, PRIV_EFFECTIVE, pset) == 0)));
-	  priv_freeset (pset);
-	}
-# else
-      /* In traditional Unix, only root can unlink directories.  */
-      cannot = (geteuid () != 0);
-# endif
-      initialized = true;
-    }
-
-  return cannot;
-}
-
-#endif