Revert "Add `USE_BACKGROUND_FACE_AUTHENTICATION` permission."

Revert submission 25750009-facemanager_20240110

Reason for revert: Project cancelled.

Bug: 329561487

LOW_COVERAGE_REASON=Revert.

Reverted changes: /q/submissionid:25750009-facemanager_20240110
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:358c6eba720e49753e572777e1686161ba938ea5)
Revert FaceManager changes.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:78c97332b688d215bd92b5b8560b8b5da40fd3ba)
Merged-In: Ibe705a12a6b8b234eea69343b820947a12690086
Change-Id: Ibe705a12a6b8b234eea69343b820947a12690086