Revert "abuild: Allow disabling mainboards"

This reverts commit 3ac3c4ebac8 ("abuild: Allow disabling mainboards").

This mechanism helped getting Chrome OS' coreboot divergence sorted
out in the 2015/2016 timeframe but hasn't been used by anybody since
then. Let's not encourage people to push non-working builds without
good reason and discussion (the result of which could be that we
re-introduce this mechanism).

Change-Id: I8e2f2e1a5d4617baa49cbcb1a640a1ea270007ef
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50518
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions