owm: drop dependency to olsr

[SvenRoederer]

The OWM-script uses OLSR to get some details of it's meshing links to publish this on the map. On our way to change the routing-protocol of the net, this dependency needs to be removed.

Even it's not known to which protocol we will go to, removing OLSR is a first step required anyway.

[SvenRoederer]

When we discussed on #776, where was also a short sidenote on "getting rid of olsrv1", as this will remove SmartGateway problems also.