Remove unnecessary code, replace with area enter messages

code/game/area/areas_vr.dm

@@ -1,6 +1,13 @@
-/area/shuttle_arrived()
-	.=..()
-	for(var/obj/machinery/telecomms/relay/R in contents)
-		R.reset_z()
-	for(var/obj/machinery/power/apc/A in contents)
-		A.update_area()
+/area
+	var/enter_message
+	var/exit_message
+
+/area/Entered(var/atom/movable/AM, oldLoc)
+	. = ..()
+	if(enter_message && ismob(AM))
+		to_chat(AM, enter_message)
+
+/area/Exited(var/atom/movable/AM, newLoc)
+	. = ..()
+	if(exit_message && ismob(AM))
+		to_chat(AM, exit_message)

code/game/machinery/telecomms/presets_vr.dm

@@ -4,5 +4,6 @@
 	produces_heat = 0
 	autolinkers = list("hb_relay")
 
-/obj/machinery/telecomms/relay/proc/reset_z()
-	listening_level = z
+/obj/machinery/telecomms/relay/onTransitZ(oldz, newz)
+	. = ..()
+	listening_level = newz