removes fourth argument air_group of CanPass() as it's not used and is a leftover from FEA

code/game/machinery/computer/HolodeckControl.dm

@@ -516,7 +516,7 @@
 		visible_message("<span class='notice'>[user] dunks [W] into the [src]!</span>")
 		return
 
-/obj/structure/holohoop/CanPass(atom/movable/mover, turf/target, height=0, air_group=0)
+/obj/structure/holohoop/CanPass(atom/movable/mover, turf/target, height=0)
 	if(istype(mover,/obj/item) && mover.throwing)
 		var/obj/item/I = mover
 		if(istype(I, /obj/item/projectile))
@@ -528,7 +528,7 @@
 			visible_message("<span class='alert'>\The [I] bounces off of \the [src]'s rim!</span>")
 		return 0
 	else
-		return ..(mover, target, height, air_group)
+		return ..(mover, target, height)
 
 /obj/machinery/readybutton
 	name = "Ready Declaration Device"