cleanup , remove audodiscover

I tried to cleanup a bit.

the autodiscover function seems to be a personal adaptation that is handy to you, but unfortunately it is useless to others.

I used to have all hostnames configured in the .ssh/config so my main use it to have something like cssh within terminator.

I also wrote a similar wrapper for tmux -> https://github.com/nean-and-i/tssh