platform2: Remove legacy inherit-review-settings-ok files.
platform2: Remove legacy inherit-review-settings-ok files.

BUG=None
TEST=Trybot run on paladin, release, and chromiumos-sdk builders.

Change-Id: I11a13e64cd1fd9e3394d1f298425d29204bb06aa
Reviewed-on: https://chromium-review.googlesource.com/212840
Tested-by: Ben Chan <cbf05950e17ecad3ef3493de163419467bf3e151@chromium.org>
Reviewed-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Commit-Queue: Ben Chan <cbf05950e17ecad3ef3493de163419467bf3e151@chromium.org>

omegaup/minijail,omegaup/minijail,omegaup/minijail,omegaup/minijail