Revert "SFPS indicator and BiometricPrompt MVVM cleanup"

This reverts commit c244eb6595d080a755a947a049f4a28e3dc47382.

Reason for revert: Reverting to verify locally if this is causing the recent issues around Side FPS indicator not showing up.

Fixes: 361209015
Fixes: 367706213

Change-Id: Ic2ffd5a1f4420121b958cadb726c3e805cda1434
17 files changed