chromeos: remove VBOOT2_VERIFY_FIRMWARE option

There's no need to have the VBOOT2_VERIFY_FIRMWARE
distinction because it's the only game in town.

Change-Id: I82aab665934c27829e1a04115bf499ae527a91aa
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9958
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/lib/coreboot_table.c

@@ -195,7 +195,7 @@ static void lb_vbnv(struct lb_header *header)
 #endif
 }
 
-#if CONFIG_VBOOT_VERIFY_FIRMWARE || CONFIG_VBOOT2_VERIFY_FIRMWARE
+#if CONFIG_VBOOT_VERIFY_FIRMWARE
 static void lb_vboot_handoff(struct lb_header *header)
 {
 	void *addr;