19/n: Remove dead code

I don't think getUserOrWorkProfileId, getEffectiveUserId are
necessary/used anymore.

UserIds are distinct for owners, managed profiles, and multi-user
AFAIK. This code might have been for before some methods in
Fingerprint/FaceService had userId as a parameter from the caller.
In addition one lock does not apply to biometrics.

Bug: 157790417

Test: Able to authenticate for owner, work profile, and secondary user

Change-Id: I342a162015b9a90f802affc839f16e73f0e6130a