arch/x86: Drop spurious arch/stages.h includes

Change-Id: I3b9217a7d9a6d98a9c5e8b69fe64c260b537bb64
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30388
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/braswell/romstage/romstage.c

@@ -20,7 +20,6 @@
 #include <arch/early_variables.h>
 #include <arch/io.h>
 #include <arch/cbfs.h>
-#include <arch/stages.h>
 #include <chip.h>
 #include <cpu/x86/mtrr.h>
 #include <console/console.h>

src/soc/intel/skylake/romstage/romstage.c

@@ -16,7 +16,6 @@
 
 #include <arch/io.h>
 #include <arch/cbfs.h>
-#include <arch/stages.h>
 #include <arch/early_variables.h>
 #include <assert.h>
 #include <chip.h>