mainboard/dmp/vortex86ec: Unused variable in romstage.c

Change-Id: I9cc549b7862ee535928bd06b5fb4bd38bb67a992
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7279
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/mainboard/dmp/vortex86ex/romstage.c

@@ -303,7 +303,6 @@ static void enable_l2_cache(void)
 #include <cpu/intel/romstage.h>
 static void main(unsigned long bist)
 {
-	device_t dev;
 	u32 dmp_id;
 
 	dmp_id = get_dmp_id();