Remove

-/* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000, 2001, 2005 Free Software Foundation, Inc.
-
-   GNU Mailutils 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.
-
-   GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-   MA 02110-1301 USA */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <mailutils/argp.h>
-
-void
-mh_error(const char *fmt, ...)
-{
-  va_list ap;
-  va_start (ap, fmt);
-  fprintf (stderr, "%s: ", program_invocation_short_name);
-  vfprintf (stderr, fmt, ap);
-  fprintf (stderr, "\n");
-  va_end (ap);
-}