Merge pull request 'Fix long globalstep for inactive shields' (#2489) from fix-shields-gs into master

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/2489
Reviewed-by: MysticTempest <mystictempest@noreply.git.minetest.land>

mods/ITEMS/mcl_shields/init.lua

@@ -219,12 +219,11 @@ end
 local shield_hud = {}
 
 local function remove_shield_hud(player)
-	if shield_hud[player] then
+	if not shield_hud[player] then return end --this function takes a long time. only run it when necessary
 	player:hud_remove(shield_hud[player])
 	shield_hud[player] = nil
 	set_shield(player, false, 1)
 	set_shield(player, false, 2)
-	end
 
 	local hf = player:hud_get_flags()
 	if not hf.wielditem then