Revert "efi: Allow easy selection of serial-only operation"

This commit re-introduced a migrated CONFIG symbol to the board header
file.  These changes should likely be handled via documentation instead,
as well.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/efi-x86_app.h b/include/configs/efi-x86_app.h
index 33afb7c..6061a6d 100644
--- a/include/configs/efi-x86_app.h
+++ b/include/configs/efi-x86_app.h
@@ -10,33 +10,8 @@
 
 #undef CONFIG_TPM_TIS_BASE_ADDRESS
 
-/*
- * Select the output device: Put an 'x' prefix before one of these to disable it
- */
-
-/*
- * Video output - can normally continue after exit_boot_services has been
- * called, since output to the display does not require EFI services at that
- * point. U-Boot sets up the console memory and does its own drawing.
- */
 #define CONFIG_STD_DEVICES_SETTINGS	"stdin=serial\0" \
 					"stdout=vidconsole\0" \
 					"stderr=vidconsole\0"
 
-/*
- * Serial output with no console. Run qemu with:
- *
- *    -display none -serial mon:stdio
- *
- * This will hang or fail to output on the console after exit_boot_services is
- * called.
- */
-#define xCONFIG_STD_DEVICES_SETTINGS	"stdin=serial\0" \
-					"stdout=serial\0" \
-					"stderr=serial\0"
-
-#undef CONFIG_BOOTCOMMAND
-
-#define CONFIG_BOOTCOMMAND "part list efi 0; fatls efi 0:1"
-
 #endif