MUC: Remove XEP-0091: Legacy Delayed Delivery Why do we still include this? Deprecated in 2007, obsoleted in 2009. Removes redundant timestamp that nobody should be looking at since many years and a redundant copy of the room JID.

local xpcall = xpcall;

if select(2, xpcall(function (x) return x end, function () end,  "test")) ~= "test" then
	xpcall = require"util.compat".xpcall;
end

return {
	xpcall = xpcall;
};