Removes most hard-coded z level checks

code/game/objects/items/devices/camera_bug.dm

@@ -61,7 +61,6 @@
 		return null
 
 	var/turf/T = get_turf(user.loc)
-	// TODO: Tie into space manager
 	if(T.z != current.z || !current.can_use())
 		to_chat(user, "<span class='danger'>[src] has lost the signal.</span>")
 		current = null
@@ -226,7 +225,6 @@
 				to_chat(usr, "<span class='danger'>Something's wrong with that camera.  You can't get a feed.</span>")
 				return
 			var/turf/T = get_turf(loc)
-			// TODO: Tie into space manager
 			if(!T || C.z != T.z)
 				to_chat(usr, "<span class='danger'>You can't get a signal.</span>")
 				return

code/game/objects/items/devices/radio/intercom.dm

@@ -124,7 +124,7 @@
 		return -1
 	if(!(0 in level))
 		var/turf/position = get_turf(src)
-		// TODO: Tie into space manager
+		// TODO: Integrate radio with the space manager
 		if(isnull(position) || !(position.z in level))
 			return -1
 	if(!src.listening)