Drop dump_... tables in Icehouse (post DB compression)

[Dan Prince]

The following DB tables should be dropped in Icehouse once we compress the database:

 dump_compute_node_stats
 dump_compute_nodes
 dump_instance_actions
 dump_instance_actions_events
 dump_instance_faults
 dump_migrations

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/66633

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/66633
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=afa99357d54dd56eeefb7d06560f8f2624d2d8ee
Submitter: Jenkins
Branch: master

commit afa99357d54dd56eeefb7d06560f8f2624d2d8ee
Author: Dan Prince <email address hidden>
Date: Tue Jan 14 11:42:49 2014 -0500

    Drop unused dump_ SQL tables.

    Drop the following tables which are no longer
    used in Icehouse:
     -dump_compute_node_stats
     -dump_compute_nodes
     -dump_instance_actions
     -dump_instance_actions_events
     -dump_instance_faults
     -dump_migrations

    Includes a new test to ensure the tables are dropped.

    Change-Id: Ifa70b8dedebd074353560ac46d42a9cc5d133be2
    Closes-bug: 1266538