Currently DELETE method in UserAdmin script can't delete user if it belongs to VHost that doesn't exist locally (because created ad-hoc is addressed to sess-man on that VHost, which results in redirection to s2s instead of sess-man).

Maybe we could replace it with direct call to the repository?:

		execDelete = { Service service, callback, user, localPart, domain ->
			def jid = BareJID.bareJIDInstance(localPart, domain);
			def uid = service.getUserRepository().getUserUID(jid);
			service.getUserRepository().removeUser(jid);
			service.getAuthRepository().removeUser(jid);
			callback([ user: [ jid: jid.toString(), domain: domain, uid: uid ] ]);
		}

(I tested it locally and it works well but I'd prefer that run that by you)