Revert "Set up OWNERS"

Revert submission 2521855-285981567

Reason for revert: open for 5.15 in-market kernel development

Reverted changes: /q/submissionid:2521855-285981567

Bug: 313355593
Bug: 309749142
Change-Id: I235ad11523fb496fe8f44a062ef716898428c8d5