too many "Including all tenants items" printed in logs

[stanzgy]

When inserted about 13k test records data into designate, the service began to stuck, took up 100% cpu and flooded with a lot of logs.
Among those logs, there are a lot duplicated lines like:

2015-03-19 06:33:47.280 20760 DEBUG designate.sqlalchemy.base [-] Including all tenants items in query results _apply_tenant_criteria /usr/lib/python2.7/dist-packages/designate/sqlalchemy/base.py:132

$ grep "Including all tenants items" -rn designate-mdns.log|wc -l
3395425
$ wc -l designate-mdns.log
3417311 designate-mdns.log

$ grep "Including all tenants items" -rn designate-central.log|wc -l
18466754
$ wc -l designate-central.log
61192408 designate-central.log

This log message helps little when debugging and is too much redundant.
IMO it should be removed.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/165679

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/165679
Committed: https://git.openstack.org/cgit/openstack/designate/commit/?id=1b80cb142199c13c65dc95fda8dc69daa5b4df3e
Submitter: Jenkins
Branch: master

commit 1b80cb142199c13c65dc95fda8dc69daa5b4df3e
Author: stanzgy <email address hidden>
Date: Thu Mar 19 11:27:05 2015 +0800

    Remove "Including all tenants items" debug log

    Change-Id: Ic27331aa2b48ddc79234b28e0ec4af98af5c0371
    Closes-bug: 1433869