x86: Drop QEMU-specific EFI payload support

Now that we have generic EFI payload support for all x86 boards,
drop the QEMU-specific one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/emulation/qemu-x86/Kconfig b/board/emulation/qemu-x86/Kconfig
index a593f8c..41a27dd 100644
--- a/board/emulation/qemu-x86/Kconfig
+++ b/board/emulation/qemu-x86/Kconfig
@@ -13,12 +13,12 @@
 	default "qemu-x86"
 
 config SYS_TEXT_BASE
-	default 0xfff00000 if !EFI_STUB && !SUPPORT_SPL
-	default 0x01110000 if EFI_STUB || SUPPORT_SPL
+	default 0xfff00000 if !SUPPORT_SPL
+	default 0x01110000 if SUPPORT_SPL
 
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
-	select X86_RESET_VECTOR if !EFI_STUB
+	select X86_RESET_VECTOR
 	select QEMU
 	select BOARD_ROMSIZE_KB_1024