handle smoke removal with on_destruct

rules.lua

@@ -414,7 +414,6 @@ function lc_liberties.handle_dig(pos, node, digger)
         local count = 0
         for i, v in pairs(connected_group(pos)) do
             count = count + 1
-            smokecontrol(v)
             nodecore.set_loud(v, {name = "air"})
         end
 
@@ -422,7 +421,6 @@ function lc_liberties.handle_dig(pos, node, digger)
 
         return true
     else
-        smokecontrol(pos)
         return minetest.node_dig(pos, node, digger)
     end
 end

stones.lua

@@ -79,6 +79,8 @@ local function reg(name, basename, basedef)
         on_construct = lc_liberties.handle_placement,
 
         on_dig = lc_liberties.handle_dig,
+
+        on_destruct = nodecore.smokeclear,
     })
 
     local territory_selection_box = {