Make can_interact_with_node() check for key group instead of default:key

mods/default/craftitems.lua

@@ -148,7 +148,6 @@ end)
 minetest.register_craftitem("default:skeleton_key", {
 	description = S("Skeleton Key"),
 	inventory_image = "default_key_skeleton.png",
-	groups = {key = 1},
 	on_use = function(itemstack, user, pointed_thing)
 		if pointed_thing.type ~= "node" then
 			return itemstack

mods/default/functions.lua

@@ -639,7 +639,7 @@ function default.can_interact_with_node(player, pos)
 
 	-- Is player wielding the right key?
 	local item = player:get_wielded_item()
-	if item:get_name() == "default:key" then
+	if minetest.get_item_group(item:get_name(), "key") == 1 then
 		local key_meta = item:get_meta()
 
 		if key_meta:get_string("secret") == "" then