Radware LBaaS v2 driver does not delete DB entity properly

[Evgeny Fedoruk]

Radware LBaaS v2 is a LBaaS v2 service provider.
Create loadbalancer with listener, default pool, and member.
Delete the loadbalancer. Loadbalancer DB entity is not deleted.

Radware LBaaS v2 driver does not call the driver mixin successful_completion function properly
that causes the DB object not to be deleted

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/172709

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/172709
Committed: https://git.openstack.org/cgit/openstack/neutron-lbaas/commit/?id=f07c902f85958233985cba5bbac96eddbe0dcac9
Submitter: Jenkins
Branch: master

commit f07c902f85958233985cba5bbac96eddbe0dcac9
Author: Evgeny Fedoruk <email address hidden>
Date: Sun Apr 12 04:46:38 2015 -0700

    Fixing Radware LBaaS v2 driver entity deletion

    Fixing driver entity deletion bug
    where driver mixin successful_completion function was not called properly
    and left the entity not deleted in DB

    Change-Id: Ifb25adea9da7921a0d2d414ef73ad403dc89a9ac
    Closes-Bug: 1443060