no need to discover panel in _autodiscover in Site class

[chaoliu]

no need to discover panel in Site class since the job is done by _audodiscover() method in Dashboard class

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/503911

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/503911
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=fb39de18e41a5e50f7f840336429109e847c816d
Submitter: Jenkins
Branch: master

commit fb39de18e41a5e50f7f840336429109e847c816d
Author: chao liu <email address hidden>
Date: Wed Sep 13 20:14:54 2017 -0700

    No need to discover panel in Site class

    Panel discovery is done by the _audodiscover() method in
    the Dashboard class later

    Change-Id: I0261a3cd9ad411185ab68ef4ae3b35a8d7ae3b23
    Closes-Bug: #1717149

[Luigi Toscano (ltoscano)]

This broke the unit tests of the sahara dashboard. Compare:

https://review.openstack.org/#/c/504760/

with

https://review.openstack.org/#/c/505575/

[Akihiro Motoki (amotoki)]

This breaks sahara-dashboard gate and is reverted in https://review.openstack.org/506108

Let's revert the revert patch again after finding out what is not good for sahara-dashboard and fix similar issues in other horizon plugins (if any).

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 13.0.0.0b1 development milestone.