for relay only tests don't pass direct addr anymore

[Arqu]

ref:

we noted: in the relay-only tests we pass direct addrs from the server to the client. which is unexpected because the server does not have direct addr in the new relay-only mode. I checked locally and in the logs, "Our direct addresses" is empty. 
However! Chuck still passes a direct addr under --remote-direct-addr arg in the client. it seems it comes from this line:
https://github.com/n0-computer/chuck/blob/48afabc4acfd0dd0d194b5e1ca5e6fcbf970e285/netsim/main.py#L157
it creates a default if it fails to parse from the output IIUC?
can we disable this? and if this was used/needed somewhere fix the parsing for those cases?
also that port 11204 is no longer used