dmp/vortex86ex: Drop excessive include

Change-Id: Ieeae96d53627768de98006074c8c8e826b1741fc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15233
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/dmp/vortex86ex/romstage.c

@@ -298,7 +298,6 @@ static void enable_l2_cache(void)
 	pci_write_config8(NB1, 0xe8, reg_nb_f1_e8);
 }
 
-#include <cpu/intel/romstage.h>
 static void main(unsigned long bist)
 {
 	u32 dmp_id;