board/rpxsuper/flash.c: Fix GCC 4.6 build warning

Fix:
flash.c: In function 'flash_init':
flash.c:52:19: warning: variable 'size' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>

board/rpxsuper/flash.c

@@ -49,7 +49,6 @@ static int write_word (flash_info_t *info, ulong dest, ulong data);
 
 unsigned long flash_init(void)
 {
-	unsigned long size;
 	int i;
 
 	/* Init: no FLASHes known */
@@ -57,7 +56,7 @@ unsigned long flash_init(void)
 		flash_info[i].flash_id = FLASH_UNKNOWN;
 
 	/* for now, only support the 4 MB Flash SIMM */
-	size = flash_get_size((vu_long *) CONFIG_SYS_FLASH0_BASE,
+	(void)flash_get_size((vu_long *) CONFIG_SYS_FLASH0_BASE,
 			      &flash_info[0]);
 
 	/*
@@ -80,7 +79,7 @@ unsigned long flash_init(void)
 		      CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
 #endif
 
-	return /*size */ (CONFIG_SYS_FLASH0_SIZE * 1024 * 1024);
+	return CONFIG_SYS_FLASH0_SIZE * 1024 * 1024;
 }
 
 /*-----------------------------------------------------------------------