In patch I47229b366c25367ec1bd48aec684e0880f3dfe60 it was
introduced the logic that if image was deleted during file
upload when we want to update image status from 'saving'
to 'active' it's expected to get Duplicate error and delete
stale chunks after that. But if user's token is expired
there will be Unathorized exception and chunks will stay
in store and clog it.
And when, the upload operation for such an image is
completed the operator configured quota can be exceeded.
This patch fixes the issue of left over chunks for an image
which was deleted from saving status, by correctly handle
auth exceptions from registry server.
Partial-bug: #1498163
Change-Id: I17a66eca55bfb83107046910e69c4da01415deec
fc32f0554d