s2smanager: Fire s2s-destroyed event to mirror s2s-created The existing events do not fire for unauthed sessions, for example (because the type does not match). I deemed changing their behaviour too risky, and the current behaviour may even be more desirable for some uses. This means we now have roughly paired events: - s2s-created -> s2s-destroyed (global only) - s2sin-established -> s2sin-destroyed (global + host) - s2sout-established -> s2sout-destroyed (global + host)

--- a/core/s2smanager.lua	Fri Nov 12 13:26:05 2021 +0000
+++ b/core/s2smanager.lua	Fri Nov 12 13:30:39 2021 +0000
@@ -101,6 +101,7 @@
 	end
 
 	local event_data = { session = session, reason = reason };
+	fire_event("s2s-destroyed", event_data);
 	if session.type == "s2sout" then
 		fire_event("s2sout-destroyed", event_data);
 		if hosts[session.from_host] then