Remove bogus and unneeded role from job definition
Remove bogus and unneeded role from job definition

We get the devstack roles for free since we're using the devstack job as
a parent. Also, the repo location was incorrect anyway.

Change-Id: I75842ff0bb28ffed7336cf77ea9535ece9e67dc3

openstack/python-openstacksdk,stackforge/python-openstacksdk,dtroyer/python-openstacksdk,dtroyer/python-openstacksdk,openstack/python-openstacksdk,stackforge/python-openstacksdk