Remove all biometrics data of a user when password is cleared.

Previously, the biometrics were only cleared if the password was cleared from the Settings.
Moved the logic from the Settings app to the system server side.
Now, the biometrics will be removed no matter how the password is cleared (Settings, adb, TestDPC).

Bug: 130653263
Test: Atest LockSettingsServiceTests
      manual testing from Settings, adb and TestDPC

Change-Id: I840856b2e2db5e595d33583fd79359fde6bccb6f