This reverts commit d10871534f.
This is a place-holder so I don't forget to revert this when [1] is
resolved
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1303660
Change-Id: I18c8aa6e7233f74c680d23b573fe9c3817a5779a
centos
Use Centos 6 cloud images as the baseline for built disk images.
For further details see the redhat-common README.