Merge pull request #9515 from Ghommie/Ghommie-cit241

Porting "Moves machine/computer frames and structures below object layer." and lowering trays layer.

code/modules/antagonists/clockcult/clock_structures/traps/steam_vent.dm

@@ -7,7 +7,6 @@
 	break_message = "<span class='warning'>The vent snaps and collapses!</span>"
 	max_integrity = 100
 	density = FALSE
-	layer = BELOW_OBJ_LAYER
 
 /obj/structure/destructible/clockwork/trap/steam_vent/activate()
 	opacity = !opacity

code/modules/antagonists/clockcult/clock_structures/wall_gear.dm

@@ -5,7 +5,6 @@
 	unanchored_icon = "wall_gear"
 	climbable = TRUE
 	max_integrity = 100
-	layer = BELOW_OBJ_LAYER
 	construction_value = 3
 	desc = "A massive brass gear. You could probably secure or unsecure it with a wrench, or just climb over it."
 	break_message = "<span class='warning'>The gear breaks apart into shards of alloy!</span>"