Revert "Stop running face detection on bouncer if both face and fp are enrolled."

This reverts commit eabd91006d070f04d00dc767813c968f2bee6f4a.

Reason for revert: UX concerns that this might affect existing unlock
behavior

Bug: 247966043
Change-Id: I55efa4e7d8ffac5fd57c1e7558b5a99ae8abb4db
Test: atest KeyguardUpdateMonitorTest
4 files changed