MIPS: dbau1x00: Remove unused flash driver stub

All dbau1x00 boards use the CFI driver so this stub driver is useless
and should not be compiled.

This patch fixes the error:

u-boot-git/board/dbau1x00/flash.c:34: multiple definition of `flash_init'
drivers/mtd/libmtd.o:u-boot-git/drivers/mtd/cfi_flash.c:2084: first defined here
board/dbau1x00/libdbau1x00.o: In function `write_buff':
u-boot-git/board/dbau1x00/flash.c:40: multiple definition of `write_buff'
drivers/mtd/libmtd.o:u-boot-git/drivers/mtd/cfi_flash.c:1265: first defined here

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>

board/dbau1x00/Makefile

@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	= $(BOARD).o flash.o
+COBJS	= $(BOARD).o
 SOBJS	= lowlevel_init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)

board/dbau1x00/flash.c

@@ -1,43 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];	/* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * flash_init()
- *
- * sets up flash_info and returns size of FLASH (bytes)
- */
-unsigned long flash_init (void)
-{
-	printf ("Skipping flash_init\n");
-	return (0);
-}
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
-	printf ("write_buff not implemented\n");
-	return (-1);
-}