No conditions on adding dns firewall entry

src/freedombone-app-pihole

 }
 
 function configure_firewall_for_pihole {
-    if [[ $(is_completed $FUNCNAME) == "1" ]]; then
-        return
-    fi
     firewall_add DNS 53
-    mark_completed $FUNCNAME
 }
 
 function pihole_pause {