l3-agent is not working with Metadriver

[Nachi Ueno]

Regression bug.

Config variables for quantum client which is used in Metadriver is removed. (l3-agent no longer uses these configs) so l3-agent didn't run with MetaDriver

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/23462

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/23462
Committed: http://github.com/openstack/quantum/commit/e91818b37829611ad515c183c0811f65a4cd5133
Submitter: Jenkins
Branch: master

commit e91818b37829611ad515c183c0811f65a4cd5133
Author: Jason Zhang <email address hidden>
Date: Mon Mar 4 11:45:22 2013 -0800

    Moved the configuration variables.

    Moved the configuration variables from dhcp agent
    to linux interface so l3-agent works with
    Metadriver.

    Also removed the unnecessary configuration variables
    from quantum debug agent because of the above
    modification.

    Fixes: bug #1138757

    Change-Id: Ib23fee18a08ef1c531feb05d98c9a76f5385a4ff