refactor: remove CanPass height arg (#26700)

code/modules/power/engines/singularity/containment_field.dm

@@ -84,7 +84,7 @@
 /obj/machinery/field
 	var/hasShocked = 0 //Used to add a delay between shocks. In some cases this used to crash servers by spawning hundreds of sparks every second.
 
-/obj/machinery/field/CanPass(atom/movable/mover, turf/target, height=0)
+/obj/machinery/field/CanPass(atom/movable/mover, turf/target)
 	if(hasShocked)
 		return 0
 	if(isliving(mover)) // Don't let mobs through

code/modules/power/generators/turbine.dm

@@ -113,12 +113,6 @@
 #define COMPFRICTION 5e5
 #define COMPSTARTERLOAD 2800
 
-
-// Crucial to make things work!!!!
-// OLD FIX - explanation given down below.
-// /obj/machinery/power/compressor/CanPass(atom/movable/mover, turf/target, height=0)
-// 		return !density
-
 /obj/machinery/power/compressor/locate_machinery()
 	if(turbine)
 		return