Voidsuit loadout fixes

- Removes duplicate helmets in EVA Bay
- Removes duplicate magboots/masks in Atmos
- Adds breath masks to EMT Voidsuits in EMT Bay

maps/tether/tether-02-surface2.dmm

@@ -15535,8 +15535,6 @@
 	dir = 8;
 	layer = 2.9
 	},
-/obj/item/clothing/shoes/magboots,
-/obj/item/clothing/mask/breath,
 /obj/structure/window/reinforced{
 	dir = 8;
 	health = 1e+006
@@ -15556,8 +15554,6 @@
 	dir = 8;
 	layer = 2.9
 	},
-/obj/item/clothing/shoes/magboots,
-/obj/item/clothing/mask/breath,
 /obj/machinery/door/window/northright{
 	name = "Atmospherics Hardsuits";
 	req_access = list(24)

maps/tether/tether-06-station2.dmm

@@ -9146,7 +9146,6 @@
 	layer = 2.9
 	},
 /obj/item/clothing/mask/breath,
-/obj/item/clothing/head/helmet/space/void/medical,
 /obj/item/clothing/shoes/magboots,
 /obj/item/clothing/suit/space/void/medical,
 /obj/item/clothing/head/helmet/space/void/medical,
@@ -9269,7 +9268,6 @@
 "pE" = (
 /obj/structure/table/rack,
 /obj/item/clothing/mask/breath,
-/obj/item/clothing/head/helmet/space/void/security,
 /obj/item/clothing/shoes/magboots,
 /obj/item/clothing/suit/space/void/security,
 /obj/item/clothing/head/helmet/space/void/security,
@@ -10519,7 +10517,6 @@
 /obj/item/clothing/suit/space/void/atmos,
 /obj/item/clothing/mask/breath,
 /obj/item/clothing/head/helmet/space/void/atmos,
-/obj/item/clothing/head/helmet/space/void/atmos,
 /turf/simulated/floor/tiled/dark,
 /area/ai_monitored/storage/eva)
 "rH" = (
@@ -16387,6 +16384,7 @@
 /obj/effect/floor_decal/steeldecal/steel_decals9{
 	dir = 1
 	},
+/obj/item/clothing/mask/breath,
 /turf/simulated/floor/tiled/dark,
 /area/medical/medbay_emt_bay)
 "Bd" = (