assorted tcomms housekeeping

split some files, merged some files, cleaned some code
removed spurious listening level toggle from relays

code/modules/pda/messenger.dm

@@ -144,8 +144,6 @@
 		return
 
 	last_text = world.time
-	// check if telecomms I/O route 1459 is stable
-	//var/telecomms_intact = telecomms_process(P.owner, owner, t)
 	var/obj/machinery/message_server/useMS = null
 	if(message_servers)
 		for(var/A in message_servers)
@@ -244,4 +242,4 @@
 		for(var/obj/item/pda/target in targets)
 			var/datum/data/pda/app/messenger/P = target.find_program(/datum/data/pda/app/messenger)
 			if(P)
-				P.receive_message(modified_message, "\ref[M]")
+				P.receive_message(modified_message, "\ref[M]")