Remove unnecessary debug output in node_dig()

builtin/item.lua

@@ -311,12 +311,9 @@ function minetest.handle_node_drops(pos, drops, digger)
 end
 
 function minetest.node_dig(pos, node, digger)
-	minetest.debug("node_dig")
-
 	local def = ItemStack({name=node.name}):get_definition()
 	-- Check if def ~= 0 because we always want to be able to remove unknown nodes
 	if #def ~= 0 and not def.diggable or (def.can_dig and not def.can_dig(pos,digger)) then
-		minetest.debug("not diggable")
 		minetest.log("info", digger:get_player_name() .. " tried to dig "
 			.. node.name .. " which is not diggable "
 			.. minetest.pos_to_string(pos))