Don't collect snapshots again when sync provider info
Don't collect snapshots again when sync provider info

Cinder collects redundant snapshot copies during sync
snapshot provider info. Remove it.

Change-Id: Id40746d0bd6dffd67d8d7055c58e054139aaeffe

phenoxim/cinder,openstack/cinder,mahak/cinder,mahak/cinder,Datera/cinder,j-griffith/cinder,phenoxim/cinder,Datera/cinder,j-griffith/cinder,openstack/cinder