[CIFS] Remove obsolete header

We decided not to use connector to do the upcalls so cn_cifs.h
is obsolete - remove it.
Signed-off-by: Steve French <sfrench@us.ibm.com>

fs/cifs/cn_cifs.h

-/*
- *   fs/cifs/cn_cifs.h
- *
- *   Copyright (c) International Business Machines  Corp., 2002
- *   Author(s): Steve French (sfrench@us.ibm.com)
- *
- *   This library is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU Lesser General Public License as published
- *   by the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for more details.
- *
- *   You should have received a copy of the GNU Lesser General Public License
- *   along with this library; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _CN_CIFS_H
-#define _CN_CIFS_H
-#ifdef CONFIG_CIFS_UPCALL
-#include <linux/types.h>
-#include <linux/connector.h>
-
-struct cifs_upcall {
-	char signature[4]; /* CIFS */
-	enum command {
-		CIFS_GET_IP = 0x00000001,   /* get ip address for hostname */
-		CIFS_GET_SECBLOB = 0x00000002, /* get SPNEGO wrapped blob */
-	} command;
-	/* union cifs upcall data follows */
-};
-#endif /* CIFS_UPCALL */
-#endif /* _CN_CIFS_H */