User fingerprint templates should be removed when the user is removed
Removing an user doesn't delete its fingerprint templates from system.
Coming from LP: #2058442:
•From admin user account, create a new user account (user1) and login to it using password. Enroll 2 FP in it.
•Lock the user account and login using enrolled FP. Observe that login is successful.
•Now login to admin user and delete the newly created account (user1). Select "Delete files" option while removing the account.
•Create a new user again (user 1). Observe that FP authentication with previously enrolled FPs still work at login screen.
Edited by Marco Trevisan