L2GatewayAgentScheduler references is_agent_down from deprecated location (it was move to neutron.agent.common.utils)

[Lajos Katona]

networking_l2gw.services.l2gateway.agent_scheduler.L2GatewayAgentScheduler.monitor_agent_state uses is_agent_down method, and this method was deprecated in Ocata, and now (Queens) it is finally removed:
https://review.openstack.org/504338

networking-l2gw should change to use the new path for the method:
neutron.agent.common.utils.is_agent_down

[Ricardo Noriega (rnoriega-b)]

There is already a patch ongoing:

https://review.openstack.org/#/c/507062/

Changing the status to "In progress"

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/507062
Committed: https://git.openstack.org/cgit/openstack/networking-l2gw/commit/?id=4b454b59d00e2083d83a848015939f9596bf835b
Submitter: Jenkins
Branch: master

commit 4b454b59d00e2083d83a848015939f9596bf835b
Author: Lajos Katona <email address hidden>
Date: Mon Sep 25 13:22:08 2017 +0200

    Replace deprecated self.is_agent_down

    Since Ocata neutron.db.agents_db.AgentDbMixin.is_agent_down is
    deprecated and in Queenst is replaced with
    neutron.agent.common.utils.is_agent_down, see:
    https://review.openstack.org/504338

    Change-Id: I6f797b8a1940579a62284b21dcad06d42cdd1c81
    Closes-Bug: 1719298