ipatests: remove dnf workaround from test_epn.py
73c02f635 introduced a workaround to make sure the latest version
of (free)ipa-client-epn was installed.
Since cc624fb17 this should not be needed anymore.
Fixes: https://pagure.io/freeipa/issue/8391
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>