networking-ovn: Remove DEVSTACK_SUBNODE_CONFIG
Since we now use local_conf stanza, we do not need to enable the plugin
anymore in DEVSTACK_SUBNODE_CONFIG, remove the setting.
# our project repository. This makes zuul do the right
# reference magic for testing changes.
export PROJECTS="openstack/networking-ovn $PROJECTS"
- export DEVSTACK_SUBNODE_CONFIG="enable_plugin networking-ovn git://git.openstack.org/openstack/networking-ovn"
# Keep localrc to be able to set some vars in pre_test_hook
export KEEP_LOCALRC=1
