cbus: Removed unused ioctl interface header

Index: linux-omap-2.6/drivers/cbus/user_retu_tahvo.h
===================================================================
@@ -1,75 +0,0 @@
-/**
- * drivers/cbus/user_retu_tahvo.h
- *
- * Copyright (C) 2004, 2005 Nokia Corporation
- *
- * Written by Mikko Ylinen <[email protected]>
- *
- * Definitions and types used by both retu-user and tahvo-user.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef _USER_RETU_TAHVO_H
-#define _USER_RETU_TAHVO_H
-
-/* Chip IDs */
-#define CHIP_RETU	1
-#define CHIP_TAHVO	2
-
-/* Register access type bits */
-#define READ_ONLY		1
-#define WRITE_ONLY		2
-#define READ_WRITE		3
-#define TOGGLE			4
-
-#define MASK(field)		((u16)(field & 0xFFFF))
-#define REG(field)		((u16)((field >> 16) & 0x3F))
-
-/*** IOCTL definitions. These should be kept in sync with user space **********/
-
-#define URT_IOC_MAGIC '`'
-
-/*
- * IOCTL function naming conventions:
- * ==================================
- *  0 -- No argument and return value
- *  S -- Set through a pointer
- *  T -- Tell directly with the argument value
- *  G -- Reply by setting through a pointer
- *  Q -- response is on the return value
- *  X -- S and G atomically
- *  H -- T and Q atomically
- */
-
-/* General */
-#define URT_IOCT_IRQ_SUBSCR		_IO(URT_IOC_MAGIC, 0)
-
-/* RETU */
-#define RETU_IOCH_READ			_IO(URT_IOC_MAGIC, 1)
-#define RETU_IOCX_WRITE			_IO(URT_IOC_MAGIC, 2)
-#define RETU_IOCH_ADC_READ		_IO(URT_IOC_MAGIC, 3)
-
-/* TAHVO */
-#define TAHVO_IOCH_READ			_IO(URT_IOC_MAGIC, 4)
-#define TAHVO_IOCX_WRITE		_IO(URT_IOC_MAGIC, 5)
-
-/* This structure is used for writing RETU/TAHVO registers */
-struct retu_tahvo_write_parms {
-    u32	field;
-    u16	value;
-    u8	result;
-};
-
-#endif