Remove websocket close call causing infinite recursion

[Rob-Crane]

Call to ws.close() will immediately call the onDisconnection callback again creating an infinite recursion. Fix is to delete redundant call to ws.close().

Fix tested in recent Debian distribution.

[mvirgo]

I'll need to do some further testing on this one...looks like it does get rid of the infinite recursion (preventing a Seg Fault at least on Mac), which allows the Disconnected message to be output, but then the program doesn't terminate on its own anymore. The infinite recursion seems to have been a crude method to get the program to end.

[Rob-Crane]

I didn't see any option in uWebSockets for exiting on disconnect. Here'a a different branch that will just reset the filter on disconnect (if that's preferred).