Ports /tg/ spatial grid system, refactors telecomms, destroys lag (#15140)

code/modules/modular_computers/computers/modular_computer/core.dm

@@ -86,7 +86,6 @@
 
 /obj/item/modular_computer/Initialize()
 	. = ..()
-	listener = new(LISTENER_MODULAR_COMPUTER, src)
 	START_PROCESSING(SSprocessing, src)
 	install_default_hardware()
 	if(hard_drive)
@@ -104,9 +103,7 @@
 	for(var/obj/item/computer_hardware/CH in src.get_all_components())
 		uninstall_component(null, CH)
 		qdel(CH)
-	listening_objects -= src
 	STOP_PROCESSING(SSprocessing, src)
-	QDEL_NULL(listener)
 	QDEL_NULL(soundloop)
 	return ..()
 
@@ -502,4 +499,4 @@
 
 /obj/item/modular_computer/on_slotmove(var/mob/living/user, slot)
 	. = ..(user, slot)
-	BITSET(user.hud_updateflag, ID_HUD) //Same reasoning as for IDs
+	BITSET(user.hud_updateflag, ID_HUD) //Same reasoning as for IDs

code/modules/modular_computers/computers/modular_computer/interaction.dm

@@ -334,5 +334,4 @@
 			return
 		if(P.focused_conv)
 			P.focused_conv.cl_send(P, text, M)
-	if(listening)
-		registered_message = text
+	registered_message = text

code/modules/modular_computers/computers/modular_computer/variables.dm

@@ -80,9 +80,6 @@
 	var/obj/item/device/paicard/personal_ai									// Personal AI, can control the device via a verb when installed
 	var/obj/item/computer_hardware/flashlight/flashlight
 
-	var/listener/listener	//Listener needed for things
-
-	var/listening = FALSE //For listening to mob say.
 	var/registered_message = ""
 
 	charge_failure_message = " does not have a battery installed."