Removed systemd-stop-user-sessions.service

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
Faster loop for user sessions

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
Made extra check that we have proper env before running command

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>