Drop ELF remains from boot code

This stuff is not used, so let's drop it.

Change-Id: I671a5e87855b4c59622cafacdefe466ab3d70143
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3660
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/lib/selfboot.c

@@ -19,11 +19,10 @@
  */
 
 #include <arch/byteorder.h>
+#include <arch/stages.h>
 #include <console/console.h>
 #include <cpu/cpu.h>
 #include <fallback.h>
-#include <boot/elf.h>
-#include <boot/elf_boot.h>
 #include <boot/coreboot_tables.h>
 #include <stdint.h>
 #include <stdlib.h>