I think this is instance communication

code/modules/world_topic/instance_announce.dm

@@ -3,12 +3,5 @@
 	requires_commskey = TRUE
 
 /datum/world_topic_handler/instance_announce/execute(list/input, key_valid)
-	var/msg = input["msg"]
-	if(input["repoll"]) // Repoll peers
-		UNTIL(!SSinstancing.check_running) // If we are running, wait
-		SSinstancing.check_peers(TRUE) // Manually check, with FORCE
-		UNTIL(!SSinstancing.check_running) // Wait for completion
-
-	// Now that we repolled, we can tell the playerbase
-	to_chat(world, "<center><span class='boldannounce'><big>Attention</big></span></center><hr>[msg]<hr>")
+	to_chat(world, "<center><span class='boldannounce'><big>Attention</big></span></center><hr>[input["msg"]]<hr>")
 	SEND_SOUND(world, sound('sound/misc/notice2.ogg')) // Same as captains priority announce

code/modules/world_topic/server_discovery.dm

@@ -1,12 +0,0 @@
-/datum/world_topic_handler/server_discovery
-	topic_key = "server_discovery"
-	requires_commskey = TRUE
-
-/datum/world_topic_handler/server_discovery/execute(list/input, key_valid)
-	// We need to send the stuff to make a /datum/peer_server on the other side
-	var/list/server_data = list()
-	server_data["external_ip"] = world.internet_address
-	server_data["server_id"] = GLOB.configuration.instancing.server_id
-	server_data["server_name"] = GLOB.configuration.general.server_name
-	server_data["playercount"] = length(GLOB.clients)
-	return json_encode(server_data)