Fix duplicated discordmt messages

Author: LoneWolfHT

.luacheckrc

@@ -16,6 +16,8 @@ globals = {
 
 	"default", "doors", "player_api", "sfinv", "binoculars", "bucket",
 
+	"discord",
+
 	"vector",
 	math = {
 		fields = {

mods/ctf/ctf_chat/init.lua

@@ -110,11 +110,22 @@ minetest.register_on_mods_loaded(function()
 
 		if chat then
 			local pteam = ctf_teams.get(name)
+
+			local od
+			if discord then
+				od = discord.send
+				discord.send = function() end
+			end
+
 			if pteam then
 				minetest.chat_send_all(minetest.colorize(ctf_teams.team[pteam].color, "<" .. name .. "> ") .. message)
 			else
 				minetest.chat_send_all("<" .. name .. "> " .. message)
 			end
+
+			if discord then
+				discord.send = od
+			end
 		end
 
 		return true

mods/ctf/ctf_chat/mod.conf

@@ -1,3 +1,3 @@
 name = ctf_chat
 depends = ctf_teams
-optional_depends = filter
+optional_depends = filter, discordmt