Removes a Plant Sitting on top of another and adds a Maplint for It (#28323)

* purposely creating a problem to test the new maplint

* ACTUALLY fix the problem, maplint works correctly

* removes a double plant on AI sat that the maplint caught

_maps/map_files/stations/deltastation.dmm

@@ -57343,7 +57343,6 @@
 /obj/effect/turf_decal/stripes/line{
 	dir = 4
 	},
-/obj/item/kirbyplants/large,
 /turf/simulated/floor/plasteel,
 /area/station/engineering/control)
 "eyG" = (
@@ -69651,7 +69650,6 @@
 /area/station/medical/reception)
 "lBJ" = (
 /obj/item/kirbyplants/large,
-/obj/item/kirbyplants/large,
 /turf/simulated/floor/plasteel{
 	dir = 8;
 	icon_state = "vault"

tools/maplint/lints/multiple_kirby_plants.yml

@@ -0,0 +1,3 @@
+/obj/item/kirbyplants:
+  banned_neighbors:
+    - /obj/item/kirbyplants