mb/supermicro/x11-lga1151-series: remove unneeded vendor id config

The vendor id option set here is useless as most SSVID registers get
filled with 0x8086 (their VID) by default, anyway.

Besides that the Kconfig option isn't meant for retrofit ports, cf.
commit 7e1c83e31b (Add Kconfig options to override Subsystem Vendor and
Device ID). The right place would be the devicetree.

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: If67c679bb342f63096902535734106e4f1651118
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35524
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/mainboard/supermicro/x11-lga1151-series/Kconfig

@@ -64,10 +64,6 @@ config MAX_CPUS
 	int
 	default 8
 
-config SUBSYSTEM_VENDOR_ID
-	hex
-	default 0x8086
-
 config CONSOLE_POST
 	bool
 	default y