treewide: Remove unused 'include <arch/io.h>'

Change-Id: I6f1d7625eb457084ba893b25518fdfdb59cf64db
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70693
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/soc/intel/cannonlake/lpc.c

@@ -4,7 +4,6 @@
 #include <device/pci.h>
 #include <pc80/isa-dma.h>
 #include <pc80/i8259.h>
-#include <arch/io.h>
 #include <device/pci_ops.h>
 #include <arch/ioapic.h>
 #include <intelblocks/itss.h>