Revert "Set glance control_exchange to 'glance'"

This reverts commit
f52b79e1d2a5094b9fca0fbab29c5e98a8d1eaf0.
We should not change upstream code in manifests.

Change-Id: Idd1566dd507878b2f01c2d0ff9956dedc77a4461
Related-bug: #1335891
Merge "Revert "Set glance control_exchange to 'glance'""