mb/asrock/b75pro3-m: Remove cpu_fan_tach_src from CMOS layout
Commit
65c456227e1 (mb/asrock/b75pro3-m: Add CMOS layout/defaults and
vbt.bin) introduced CMOS settings for selecting CPU_FAN{1,2}, but this
code was never implemented. Remove the fake setting for it.
Signed-off-by: Fabian Groffen <grobian@gentoo.org>
Change-Id: Ic2f4aa42f9cfd77defc2a11e16643690356bc26b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kevin Keijzer <kevin@quietlife.nl>
Reviewed-by: Felix Singer <felixsinger@posteo.net>