Revert parent commit for iSCSI refactor that didn't make it in Juno

[John Griffith]

During Juno we had plans to clean up the iSCSI and target code. Sadly the work rotted in gerrit without reviews and didn't make it into this release. In the process there was a commit that merged that layed some foundation work:
Change-Id: Iaa55e31e3dadc7dcb58112302c3807a8f92bcada

Without the follow up work however this is basicly "dead code" so it should be removed from the Juno release and added back in with Kilo when we're ready to go again.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/119280

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/119280
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=75564b4af164786f43f00a12bd16f26f4b0b9197
Submitter: Jenkins
Branch: master

commit 75564b4af164786f43f00a12bd16f26f4b0b9197
Author: Mike Perez <email address hidden>
Date: Thu Sep 4 19:37:47 2014 -0700

    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