x86: baytrail: Drop EFI-specific test logics

Now that we have generic EFI payload support, drop EFI-specific test
logics in BayTrail Kconfig and codes, and all BayTrail boards too.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/congatec/conga-qeval20-qa3-e3845/Kconfig b/board/congatec/conga-qeval20-qa3-e3845/Kconfig
index 9e44413..6469250 100644
--- a/board/congatec/conga-qeval20-qa3-e3845/Kconfig
+++ b/board/congatec/conga-qeval20-qa3-e3845/Kconfig
@@ -12,12 +12,11 @@
 	default "theadorable-x86-conga-qa3-e3845" if TARGET_THEADORABLE_X86_CONGA_QA3_E3845
 
 config SYS_TEXT_BASE
-	default 0xfff00000 if !EFI_STUB
-	default 0x01110000 if EFI_STUB
+	default 0xfff00000
 
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
-	select X86_RESET_VECTOR if !EFI_STUB
+	select X86_RESET_VECTOR
 	select INTEL_BAYTRAIL
 	select BOARD_ROMSIZE_KB_8192
 	select BOARD_EARLY_INIT_F