Some tests that already have context set it again

[Vladyslav Drok]

Some test case classes that inherit from ironic.tests.db.base.DbTestCase set context in their setUp method, while it is already initialized in DbTestCase's setUp method.

Example:

class NodeSetBootDeviceTestCase(base.DbTestCase):
    def setUp(self):
        super(NodeSetBootDeviceTestCase, self).setUp()
        self.context = context.get_admin_context()
        self.dbapi = dbapi.get_instance()

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124073

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/124073
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=760a9798f34675a4a03237de6b74349b3ab2e643
Submitter: Jenkins
Branch: master

commit 760a9798f34675a4a03237de6b74349b3ab2e643
Author: Vladyslav Drok <email address hidden>
Date: Thu Sep 25 17:47:06 2014 +0300

    Remove unneeded context initialization in tests

    Some test case classes that inherit from
    ironic.tests.db.base.DbTestCase set context in their setUp method,
    while it is already initialized in DbTestCase's setUp method. This
    change removes such unneeded initializations.

    Closes-bug: #1373979
    Change-Id: I7ab07168f1f30b4544801a1798cbda191c8d15c7