bootmode: Get rid of CONFIG_BOOTMODE_STRAPS

With VBOOT_VERIFY_FIRMWARE separated from CHROMEOS, move recovery and
developer mode check functions to vboot. Thus, get rid of the
BOOTMODE_STRAPS option which controlled these functions under src/lib.

BUG=chrome-os-partner:55639

Change-Id: Ia2571026ce8976856add01095cc6be415d2be22e
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15868
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/device/pci_device.c

@@ -669,8 +669,7 @@ static int should_run_oprom(struct device *dev)
 	/* Don't run VGA option ROMs, unless we have to print
 	 * something on the screen before the kernel is loaded.
 	 */
-	should_run = !IS_ENABLED(CONFIG_BOOTMODE_STRAPS) ||
-		developer_mode_enabled() || recovery_mode_enabled();
+	should_run = display_init_required();
 
 #if CONFIG_CHROMEOS
 	if (!should_run)