mb/asus/p5ql-em/Kconfig: Drop 'select ARCH_X86'

ARCH_X86 is already selected.

Change-Id: I2be69e0b7a1889794121ed94380e543ac420218b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49873
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/asus/p5ql-em/Kconfig

@@ -4,7 +4,6 @@ if BOARD_ASUS_P5QL_EM
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
-	select ARCH_X86
 	select CPU_INTEL_SOCKET_LGA775
 	select NORTHBRIDGE_INTEL_X4X
 	select SOUTHBRIDGE_INTEL_I82801JX