Extra specs of instance type (flavor) remain after instance type deletion/purge

[Vladimir Popovski]

instance_type_destroy() & instance_type_purge() functions of nova.db.sqlalchemy.api delete/purge only records in InstanceTypes and don't delete associated extra specs.

Same issue is relevant for volume types - volume_type_destroy() & volume_type_purge()

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/3739

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/3739
Committed: http://github.com/openstack/nova/commit/faa938c1650d892b945795112eb2850212b28ccb
Submitter: Jenkins
Branch: master

commit faa938c1650d892b945795112eb2850212b28ccb
Author: Vishvananda Ishaya <email address hidden>
Date: Thu Feb 2 18:53:17 2012 -0800

    Removes constraints from instance and volume types

     * Gets rid of annoying purge semantics
     * removes unique constraints from the db
     * deletes extra specs when a volume is deleted
     * adds exceptions for when the type already exists
     * fixes bug 854930
     * fixes bug 925823

    Change-Id: I4618759e31501b2e85325f4e9b9895f04dc151d0