efi-x86_app: Remove empty config header

Now that we support having CONFIG_SYS_CONFIG_NAME be unset to indicate a
lack of board.h file, unset this on the efi-x86_app* platforms and remove
the otherwise empty file.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/efi/efi-x86_app/Kconfig b/board/efi/efi-x86_app/Kconfig
index ecd08d7..f9cbef0 100644
--- a/board/efi/efi-x86_app/Kconfig
+++ b/board/efi/efi-x86_app/Kconfig
@@ -9,9 +9,6 @@
 config SYS_SOC
 	default "efi"
 
-config SYS_CONFIG_NAME
-	default "efi-x86_app"
-
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	imply VIDEO_EFI
diff --git a/board/efi/efi-x86_app/MAINTAINERS b/board/efi/efi-x86_app/MAINTAINERS
index 584619c..693f367 100644
--- a/board/efi/efi-x86_app/MAINTAINERS
+++ b/board/efi/efi-x86_app/MAINTAINERS
@@ -3,7 +3,6 @@
 S:	Maintained
 F:	board/efi/Kconfig
 F:	board/efi/efi-x86_app/
-F:	include/configs/efi-x86_app.h
 F:	configs/efi-x86_app32_defconfig
 
 EFI-X86_APP64 BOARD
@@ -11,5 +10,4 @@
 S:	Maintained
 F:	board/efi/Kconfig
 F:	board/efi/efi-x86_app/
-F:	include/configs/efi-x86_app.h
 F:	configs/efi-x86_app64_defconfig
diff --git a/include/configs/efi-x86_app.h b/include/configs/efi-x86_app.h
deleted file mode 100644
index d582404..0000000
--- a/include/configs/efi-x86_app.h
+++ /dev/null
@@ -1,4 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2015 Google, Inc
- */