Retire tripleo-incubator

[Emilien Macchi]

We don't use this project anymore, we can retire it.

[Emilien Macchi (emilienm)]

Useful links:

- http://codesearch.openstack.org/?q=tripleo-incubator&i=nope&files=&repos
- https://docs.openstack.org/infra/manual/drivers.html#retiring-a-project

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/565838

[Alex Schultz (alex-schultz)]

https://review.openstack.org/#/q/topic:bug/1768590+(status:open+OR+status:merged)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/565838
Committed: https://git.openstack.org/cgit/openstack/tripleo-incubator/commit/?id=ed8fed7aa2ef01b4041118e0efc07183853d4cb8
Submitter: Zuul
Branch: master

commit ed8fed7aa2ef01b4041118e0efc07183853d4cb8
Author: Alex Schultz <email address hidden>
Date: Wed May 2 10:39:11 2018 -0600

    Retire tripleo-incubator

    This project is no logner maintained or used as part of TripleO.

    Change-Id: I0c9d052d2b3e3a3e656342042461b330c74139f0
    Related-Bug: #1768590
    Depends-On: https://review.openstack.org/#/c/565836/