Remove code that has been replaced by bastion/v2 APIs.

Delete several old and unused UI controllers, views,
javascript files, styles, and tests as well as removing
unused functionality from remaining bastion-only UI controllers.
Merge pull request #3731 from waldenraines/remove-cruft

Remove code that has been replaced by bastion/v2 APIs.
Namespacing Katello factories and updating duplicated factories to modify
existing ones from Foreman. Addresses the test failures introduced
by Foreman PR #1070.
Merge pull request #3763 from ehelms/refs-1070

Namespacing Katello factories and updating duplicated factories to modif...
Code for Org  Create orchestration