fix(tests): marionette fixes: remove selenium check; export X DISPLAY (#4596) r=vladikoff
fix(tests): marionette fixes: remove selenium check; export X DISPLAY (#4596) r=vladikoff


shane-tomlinson/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server