Removes a duplicate air alarm on the Kansatsu (#2539)

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## About The Pull Request
Title
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## Why It's Good For The Game
Having multiple air alarms in a room is bad
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## Changelog

:cl:
fix: Removed a duplicate air alarm in the Kansatsu-class Exploration
Vessel
/:cl:

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_maps/shuttles/syndicate/syndicate_cybersun_kansatsu.dmm

@@ -12,9 +12,7 @@
 /obj/effect/turf_decal/spline/fancy/opaque/syndiered{
 	dir = 1
 	},
-/obj/effect/turf_decal/spline/fancy/opaque/syndiered{
-	dir = 2
-	},
+/obj/effect/turf_decal/spline/fancy/opaque/syndiered,
 /turf/open/floor/plasteel/white,
 /area/ship/bridge)
 "ah" = (
@@ -494,7 +492,6 @@
 /obj/effect/turf_decal/corner/opaque/syndiered/bordercorner{
 	dir = 4
 	},
-/obj/machinery/airalarm/directional/west,
 /turf/open/floor/plasteel/dark,
 /area/ship/crew)
 "lP" = (