Remove all biometrics if user is removed.

Test: Verified face & fingerprint get corresponding calls to delete
if a guest profile is removed.
Bug: 193926097

Change-Id: I50f3a02d7578907acfcb901e011939165bfd8534

services/core/java/com/android/server/locksettings/LockSettingsService.java

@@ -2485,6 +2485,7 @@ public class LockSettingsService extends ILockSettings.Stub {
 
     private void removeUser(int userId, boolean unknownUser) {
         Slog.i(TAG, "RemoveUser: " + userId);
+        removeBiometricsForUser(userId);
         mSpManager.removeUser(userId);
         mStrongAuth.removeUser(userId);