Revert "Add contentdir yum variable"
Revert "Add contentdir yum variable"

This is no longer needed as this file seems to be created on a freshly
installed system.

This reverts commit 80706ed6e3505605de41fad308df85c6166b98f8.

Change-Id: I8d518b2a940333a76e21b22929272e60ed493dbf
Signed-off-by: Lance Albertson <3161cdc7bf197e4c3a35b9cbe358c79910f27e90@osuosl.org>

openstack/cookbook-openstack-common,openstack/cookbook-openstack-common