MUC: Remove <{muc}x> tags in some errors Including the payload of the stanza that caused the error is optional and we're generally not doing it anywhere else.

author: Kim Alvefur <zash@zash.se>
date: Wed, 08 Dec 2021 21:55:25 +0100
parent: 12027:5fb16f41f861
child: 12977:74b9e05af71e
--- a/plugins/muc/password.lib.lua	Wed Dec 08 21:06:16 2021 +0100
+++ b/plugins/muc/password.lib.lua	Wed Dec 08 21:55:25 2021 +0100
@@ -51,7 +51,7 @@
 		local from, to = stanza.attr.from, stanza.attr.to;
 		module:log("debug", "%s couldn't join due to invalid password: %s", from, to);
 		local reply = st.error_reply(stanza, "auth", "not-authorized", nil, room.jid):up();
-		event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
+		event.origin.send(reply);
 		return true;
 	end
 end, -20);