mb/emulation/qemu-i440fx|q35: Get rid of unused headers

Change-Id: I3cf0e4ef5b090d15ad823747fcf9219644e130fc
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/29577
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/mainboard/emulation/qemu-i440fx/mainboard.c

@@ -16,10 +16,8 @@
 
 #include <device/device.h>
 #include <device/pci.h>
-#include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <pc80/keyboard.h>
-#include <arch/io.h>
 
 static const unsigned char qemu_i440fx_irqs[] = {
 	11, 10, 10, 11,