mod_dialback: Remove d-w-d feature
Backs out 1d0862814bfc and 2fdd71b08126
Largely unused, undocumented and did not have enough tests to provide
confidence in its correct operation.
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
-- COMPAT: Only for external pre-0.9 modules
local hashes = require "util.hashes"
return { md5 = hashes.hmac_md5,
sha1 = hashes.hmac_sha1,
sha256 = hashes.hmac_sha256 };