Fixes the Osprey's Airlocks (#2681)

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## About The Pull Request
Deletes the firelocks in the Osprey's airlocks because they break them.
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## Why It's Good For The Game
Airlocks suddenly becoming unusable is Bad!
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## Changelog

:cl:
fix: Osprey airlocks no longer have firelocks that stop them from
functioning.
/:cl:

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_maps/shuttles/nanotrasen/nanotrasen_osprey.dmm

@@ -177,7 +177,6 @@
 /obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer4,
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2,
 /obj/effect/turf_decal/borderfloor,
-/obj/machinery/door/firedoor,
 /turf/open/floor/plasteel/tech,
 /area/ship/hallway/central)
 "bs" = (
@@ -2976,7 +2975,6 @@
 /obj/effect/turf_decal/borderfloor{
 	dir = 1
 	},
-/obj/machinery/door/firedoor,
 /turf/open/floor/plasteel/tech,
 /area/ship/hallway/central)
 "tm" = (
@@ -3263,7 +3261,6 @@
 "uQ" = (
 /obj/machinery/door/airlock/external,
 /obj/machinery/atmospherics/pipe/layer_manifold,
-/obj/machinery/door/firedoor,
 /turf/open/floor/plasteel/tech,
 /area/ship/hallway/central)
 "vi" = (