infra: Switch utils calls to filecontrol

Change all call to functions moved to filecontrol to appropriate module
and remove old calls from utils

Change-Id: I2ddeaaf304679d475252fcda6c498fc991704792
Signed-off-by: Dima Kuznetsov <dkuznets@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/35919
Reviewed-by: Piotr Kliczewski <piotr.kliczewski@gmail.com>
Reviewed-by: Saggi Mizrahi <smizrahi@redhat.com>
Reviewed-by: Yeela Kaplan <ykaplan@redhat.com>
Reviewed-by: mooli tayer <mtayer@redhat.com>