Revert iSCSI Target objects as independent objects

Removing from gate queue since failing unit tests

The second half of this code didn't make it in, so this is essentially
dead code. We'll readd this code back in Kilo.

This reverts commit d10fb796f491152486e394481e920479bab9e3d1.

Closes-Bug: #1365516
Change-Id: Ia4b3b4ef4a7b6f3829fe576ec370b6d74a7bc922
Merge "Revert iSCSI Target objects as independent objects"