Revert "iscsi: Iscsi rescan cleanup"

This reverts commit 9df615a98ef98a3111f691c0f1dd47a979b48032.

Change-Id: Ie28d733ac86d0b7379bbe406bfcdc7779bc0402a
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/23233