ejabberd: ensure coturn isnt running

hosts/by-name/servo/services/ejabberd.nix

@@ -117,6 +117,9 @@ lib.mkIf false
     turnPortRange
   ));
 
+  # this ejabberd config uses builtin STUN/TURN server, so hack to ensure no other implementation fights for ports
+  services.coturn.enable = false;
+
   # provide access to certs
   # TODO: this should just be `acme`. then we also add nginx to the `acme` group.
   #   why is /var/lib/acme/* owned by `nginx` group??