fixed diona floors being unremovable (#8361)

* fixed diona floors being unremovable

* changelog

code/game/turfs/simulated/floor_types.dm

@@ -5,7 +5,4 @@
 	name = "biomass flooring"
 	icon_state = "diona"
 	footstep_sound = "grass"
-	initial_flooring = /decl/flooring/diona
-
-/turf/simulated/floor/diona/attackby()
-	return
+	initial_flooring = /decl/flooring/diona

html/changelogs/geeves-diona_floors.yml

@@ -0,0 +1,6 @@
+author: Geeves
+
+delete-after: True
+
+changes: 
+  - bugfix: "Fixed Diona Floors being difficult to remove. Use a shovel."