This reverts commit c358adad56.
Reason for revert: Applying original change with additional change for single sensor devices.
Bug: 192420564
Bug: 188847063
Test: manual enroll face & fingerprint via setup wizard (on fp, face, & fp+face device variants)
Change-Id: Idfaaa2b6f4611056f9999325bac8401e28a7510b
This reverts commit eb1dac69f0.
Reason for revert: Based on bisection, this CL is the root cause for bug 192420564, which breaks Setup Wizard.
Bug: 192420564
Change-Id: I8d9aee7fe2415e134fcc981b0548bd9ce300db55