[web/test] drop proff of concept Facebook login in test
The authentication stack will change. The change in API will requires rework of
user cube anyway.
/*
* cubicweb js mock for unit tests
* This module defines variables and functions used in quite a few places
* in cw js framework that can't be used or guessed without a real CW server
*/
var pageid = 'my-page-id';
function _(message) {
return message;
}