Move test_get_user_allocation_for_dhcp_port_returns_none to NeutronDbPluginV2AsMixinTestCase

[Eugene Nikanorov]

Currently this test is in NeutronDbPluginV2TestCase.
This test suite is then inherited by all test classes of particular core plugins so the test is duplicated there.

Need to move it to db_base_plugin_v2_specific test suite.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/177448

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/177448
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=521e036a45eeb26c72e66aae2dab1a3b383bccc5
Submitter: Jenkins
Branch: master

commit 521e036a45eeb26c72e66aae2dab1a3b383bccc5
Author: Eugene Nikanorov <email address hidden>
Date: Sat Apr 25 00:50:25 2015 +0400

    Move test_get_user_allocation*returns_none test to a proper class

    Move it out of NeutronDbPluginV2TestCase so there is no test
    duplication.

    Change-Id: Ib01f2d651c1b0a48062656bd1f66c52481a86ad6
    Closes-Bug: #1448268

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: neutron-pecan
Review: https://review.openstack.org/185072