Stat tracker shutdown

[hakusaro]

In version 4.3.26, the stat tracker was removed. Due to the Heroku shutdown of free services, the stat tracker's web backend has also been removed. Since version 4.3.26, we've run a "stat tracking" server that simply responded with what TShock expected, in order to fool existing servers into working and not dumping exceptions to the console. However, today, this service has been discontinued.

If you get any errors related to this, update to at least version 4.3.26, or later, or use the stats opt-out command-line flag. If your version doesn't support the command-line flag, update to a version that does, or fork the project and remove it yourself.

[hakusaro]

To be crystal-clear, the server that we were running did not store any data. It simply accepted the payload from a given server, and then discarded it immediately, without saving it anywhere. The storage functionality was removed before 4.3.26.