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diff --git a/libstdc++-v3/config/io/c_io_libio_codecvt.c b/libstdc++-v3/config/io/c_io_libio_codecvt.c
deleted file mode 100644
index 38d8b55e..00000000
--- a/libstdc++-v3/config/io/c_io_libio_codecvt.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
-   This file is part of the GNU IO Library.
-
-   This library 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 2, or (at
-   your option) any later version.
-
-   This library 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 library; see the file COPYING.  If not, write to
-   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
-   MA 02111-1307, USA.
-
-   As a special exception, if you link this library with files
-   compiled with a GNU compiler to produce an executable, this does
-   not cause the resulting executable to be covered by the GNU General
-   Public License.  This exception does not however invalidate any
-   other reasons why the executable file might be covered by the GNU
-   General Public License.  */
-
-/* Slightly modified from glibc/libio/iofwide.c */
-
-#include <libio.h>
-
-#ifdef _GLIBCPP_USE_WCHAR_T
-
-/* Prototypes of libio's codecvt functions.  */
-static enum __codecvt_result 
-do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-       const wchar_t *from_start, const wchar_t *from_end,
-       const wchar_t **from_stop, char *to_start, char *to_end, 
-       char **to_stop);
-
-static enum __codecvt_result 
-do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, char *to_start, 
-	   char *to_end, char **to_stop);
-
-static enum __codecvt_result 
-do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, 
-      const char *from_start, const char *from_end, const char **from_stop, 
-      wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop);
-
-static int 
-do_encoding(struct _IO_codecvt *codecvt);
-
-static int 
-do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, 
-	  const char *from_start, const char *from_end, _IO_size_t max);
-
-static int 
-do_max_length(struct _IO_codecvt *codecvt);
-
-static int 
-do_always_noconv(struct _IO_codecvt *codecvt);
-
-
-/* The functions used in `codecvt' for libio are always the same.  */
-struct _IO_codecvt __c_libio_codecvt =
-{
-  .__codecvt_destr = NULL,		/* Destructor, never used.  */
-  .__codecvt_do_out = do_out,
-  .__codecvt_do_unshift = do_unshift,
-  .__codecvt_do_in = do_in,
-  .__codecvt_do_encoding = do_encoding,
-  .__codecvt_do_always_noconv = do_always_noconv,
-  .__codecvt_do_length = do_length,
-  .__codecvt_do_max_length = do_max_length
-};
-
-static enum __codecvt_result
-do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-       const wchar_t *from_start, const wchar_t *from_end,
-       const wchar_t **from_stop, char *to_start, char *to_end,
-       char **to_stop)
-{
-  enum __codecvt_result res = __codecvt_ok;
-
-  while (from_start < from_end)
-    {
-      if (to_start >= to_end)
-	{
-	  res = __codecvt_partial;
-	  break;
-	}
-      *to_start++ = (char) *from_start++;
-    }
-
-  *from_stop = from_start;
-  *to_stop = to_start;
-
-  return res;
-}
-
-
-static enum __codecvt_result
-do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-	   char *to_start, char *to_end, char **to_stop)
-{
-  *to_stop = to_start;
-  return __codecvt_ok;
-}
-
-
-static enum __codecvt_result
-do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-      const char *from_start, const char *from_end, const char **from_stop,
-      wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
-{
-  enum __codecvt_result res = __codecvt_ok;
-
-  while (from_start < from_end)
-    {
-      if (to_start >= to_end)
-	{
-	  res = __codecvt_partial;
-	  break;
-	}
-      *to_start++ = (wchar_t) *from_start++;
-    }
-
-  *from_stop = from_start;
-  *to_stop = to_start;
-
-  return res;
-}
-
-
-static int
-do_encoding(struct _IO_codecvt *codecvt)
-{ return 1; }
-
-
-static int
-do_always_noconv(struct _IO_codecvt *codecvt)
-{ return 0; }
-
-
-static int
-do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
-	  const char *from_start, const char *from_end, _IO_size_t max)
-{ return from_end - from_start; }
-
-
-static int
-do_max_length(struct _IO_codecvt *codecvt)
-{ return 1; }
-
-#endif /* _GLIBCPP_USE_WCHAR_T */