Revert "Add CTS test cases for new exposing APIs(1/2)"

Revert submission 26014015-Add CTS test cases for new exposing APIs

Reason for revert: The original feature was abandon

Bug: 329561487

Reverted changes: /q/submissionid:26014015-Add+CTS+test+cases+for+new+exposing+APIs
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:31cd951ef5afa0f5c2eeffd53782c4e56930b3cd)
Merged-In: Id25a861d71bca810518a529fc065a39e328be70c
Change-Id: Id25a861d71bca810518a529fc065a39e328be70c
Revert FaceManager changes.