Too many catwalks

Toooooo many catwalksss

Fixes duplicate catwalks on the same turf.

maps/tether/tether-01-surface.dmm

@@ -1095,7 +1095,7 @@
 "avc" = (/obj/machinery/door/window/brigdoor/southright{req_access = list(55); req_one_access = list(47)},/turf/simulated/floor/tiled,/area/rnd/xenobiology/xenoflora/lab_atmos)
 "avd" = (/obj/structure/window/reinforced,/obj/machinery/atmospherics/portables_connector{dir = 1},/turf/simulated/floor/tiled,/area/rnd/xenobiology/xenoflora/lab_atmos)
 "ave" = (/obj/structure/window/reinforced,/obj/machinery/atmospherics/portables_connector{dir = 1},/obj/effect/floor_decal/borderfloor{dir = 4},/obj/effect/floor_decal/industrial/danger{dir = 4},/obj/effect/floor_decal/borderfloor/corner2{dir = 5},/obj/machinery/status_display{pixel_x = 32; pixel_y = 0},/turf/simulated/floor/tiled,/area/rnd/xenobiology/xenoflora/lab_atmos)
-"avf" = (/obj/structure/catwalk,/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/trash_pile,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
+"avf" = (/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/cigarettes,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "avg" = (/obj/structure/catwalk,/obj/structure/cable{icon_state = "1-2"},/obj/structure/disposalpipe/segment,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/xenoflora)
 "avh" = (/turf/simulated/floor/plating,/area/maintenance/lower/xenoflora)
 "avi" = (/turf/simulated/floor/tiled,/area/tether/surfacebase/atrium_one)
@@ -1425,7 +1425,7 @@
 "aBu" = (/obj/structure/railing{dir = 1},/obj/machinery/atmospherics/pipe/simple/visible/scrubbers{dir = 10},/obj/machinery/atmospherics/pipe/simple/visible/supply{dir = 10},/obj/effect/floor_decal/rust,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aBv" = (/obj/structure/railing{dir = 4},/obj/structure/railing{dir = 1},/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aBw" = (/obj/structure/catwalk,/obj/machinery/light/small{dir = 4; pixel_y = 0},/obj/structure/cable{icon_state = "1-2"},/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
-"aBx" = (/obj/structure/catwalk,/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/cigarettes,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
+"aBx" = (/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/junk,/obj/random/maintenance/clean,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aBy" = (/obj/effect/decal/cleanable/dirt,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/locker_room)
 "aBz" = (/obj/machinery/light/small{dir = 4; pixel_y = 0},/obj/machinery/atmospherics/pipe/simple/hidden/supply,/obj/machinery/atmospherics/pipe/simple/hidden/scrubbers,/obj/structure/cable{d1 = 1; d2 = 2; icon_state = "1-2"},/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/locker_room)
 "aBA" = (/obj/effect/floor_decal/rust,/turf/simulated/floor/plating,/area/maintenance/lower/solars)
@@ -1453,7 +1453,7 @@
 "aBW" = (/obj/machinery/floodlight,/obj/effect/floor_decal/industrial/outline/yellow,/obj/machinery/alarm{dir = 8; icon_state = "alarm0"; pixel_x = 24},/turf/simulated/floor/tiled/techfloor,/area/tether/surfacebase/emergency_storage/rnd)
 "aBX" = (/obj/effect/decal/cleanable/dirt,/obj/effect/floor_decal/rust,/obj/machinery/camera/network/northern_star{dir = 4},/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aBY" = (/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/machinery/light/small{dir = 1},/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
-"aBZ" = (/obj/structure/catwalk,/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/junk,/obj/random/maintenance/clean,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
+"aBZ" = (/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/trash_pile,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aCa" = (/obj/structure/catwalk,/obj/structure/cable{icon_state = "1-2"},/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aCb" = (/obj/machinery/power/apc{dir = 1; name = "north bump"; pixel_x = 0; pixel_y = 28},/obj/structure/cable{icon_state = "0-2"; d2 = 2},/obj/effect/decal/cleanable/dirt,/mob/living/simple_animal/mouse,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/locker_room)
 "aCc" = (/obj/structure/railing{dir = 8},/obj/structure/railing{dir = 1},/obj/effect/decal/cleanable/dirt,/obj/random/trash_pile,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
@@ -1542,6 +1542,7 @@
 "aDH" = (/obj/structure/railing{dir = 8},/obj/effect/floor_decal/industrial/outline/yellow,/obj/machinery/atmospherics/pipe/zpipe/up/scrubbers,/obj/machinery/atmospherics/pipe/zpipe/up/supply,/obj/structure/cable/cyan{d1 = 16; d2 = 0; icon_state = "16-0"},/obj/structure/cable/cyan{d2 = 2; icon_state = "0-2"},/obj/structure/cable/cyan{d2 = 4; icon_state = "0-4"},/obj/effect/decal/cleanable/dirt,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aDI" = (/obj/machinery/power/apc{dir = 1; name = "north bump"; pixel_x = 0; pixel_y = 28},/obj/structure/cable/cyan{d2 = 8; icon_state = "0-8"},/obj/effect/decal/cleanable/dirt,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
 "aDJ" = (/obj/structure/catwalk,/obj/machinery/atmospherics/pipe/simple/visible/supply,/obj/machinery/atmospherics/pipe/simple/visible/scrubbers,/turf/simulated/floor/tiled/techfloor,/area/maintenance/lower/atmos)
+"aDK" = (/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/effect/floor_decal/rust,/obj/random/junk,/obj/random/junk,/obj/random/maintenance/cargo,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aDL" = (/obj/structure/bed/chair{dir = 1},/obj/machinery/firealarm{dir = 1; pixel_x = 0; pixel_y = -25},/turf/simulated/floor/tiled,/area/tether/surfacebase/tram)
 "aDM" = (/obj/machinery/power/apc{dir = 2; name = "south bump"; pixel_y = -28},/obj/structure/cable,/turf/simulated/floor/tiled,/area/tether/surfacebase/tram)
 "aDN" = (/obj/machinery/light,/turf/simulated/floor/tiled,/area/tether/surfacebase/tram)
@@ -1732,7 +1733,6 @@
 "aHq" = (/obj/effect/decal/cleanable/dirt,/obj/effect/floor_decal/industrial/warning,/obj/random/junk,/obj/random/junk,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aHr" = (/turf/simulated/wall/r_wall,/area/engineering/atmos/processing)
 "aHs" = (/obj/machinery/door/airlock/maintenance/common{name = "Mining Maintenance Access"},/obj/machinery/door/firedoor/glass,/obj/structure/catwalk,/turf/simulated/floor/tiled/techfloor,/area/tether/surfacebase/north_stairs_one)
-"aHt" = (/obj/structure/catwalk,/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/effect/floor_decal/rust,/obj/random/junk,/obj/random/junk,/obj/random/maintenance/cargo,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aHu" = (/obj/effect/floor_decal/techfloor{dir = 9},/obj/machinery/firealarm{dir = 2; layer = 3.3; pixel_x = 0; pixel_y = 26},/turf/simulated/floor/tiled/techfloor,/area/engineering/atmos/processing)
 "aHv" = (/obj/effect/floor_decal/techfloor{dir = 1},/obj/machinery/atmospherics/unary/vent_scrubber/on,/turf/simulated/floor/tiled/techfloor,/area/engineering/atmos/processing)
 "aHw" = (/obj/effect/floor_decal/techfloor{dir = 1},/obj/machinery/atmospherics/unary/vent_pump/on,/obj/structure/extinguisher_cabinet{pixel_y = 30},/turf/simulated/floor/tiled/techfloor,/area/engineering/atmos/processing)
@@ -1904,7 +1904,6 @@
 "aKG" = (/turf/simulated/open,/area/maintenance/lower/mining)
 "aKH" = (/obj/effect/decal/cleanable/dirt,/turf/simulated/floor/plating,/area/maintenance/lower/mining)
 "aKI" = (/obj/effect/decal/cleanable/dirt,/obj/machinery/alarm{pixel_y = 22},/turf/simulated/floor/plating,/area/maintenance/lower/mining)
-"aKJ" = (/obj/structure/catwalk,/obj/structure/catwalk,/obj/effect/decal/cleanable/dirt,/obj/random/junk,/obj/random/junk,/obj/random/maintenance/clean,/turf/simulated/floor/plating,/area/maintenance/lower/trash_pit)
 "aKK" = (/obj/machinery/light_switch{pixel_x = -25},/turf/simulated/floor/tiled/dark,/area/gateway)
 "aKL" = (/turf/simulated/floor/tiled/dark,/area/gateway)
 "aKM" = (/obj/structure/closet/firecloset,/obj/machinery/camera/network/command,/turf/simulated/floor/tiled/dark,/area/gateway)
@@ -5431,11 +5430,11 @@ aaaaadaadaadaadaadaadaadaadaadaadaadaadaagaagaagaagaagaagaagaagaagaagaagaagaagaa
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