Remove neutron customization from local.conf

We have an issue in CI, where devstack can't install successfully
because of neutron plugin failing to copy some files.

This is an attempt to fix the CI by moving the local.conf
a little closer to what worked for me when deploying
devstack localy recently.

ci/integration/metrics/local.conf

@@ -13,19 +13,6 @@ enable_service ceilometer-acompute ceilometer-acentral ceilometer-anotification
 
 disable_service horizon
 
-Q_AGENT=ovn
-Q_ML2_PLUGIN_MECHANISM_DRIVERS=ovn,logger
-Q_ML2_PLUGIN_TYPE_DRIVERS=local,flat,vlan,geneve
-Q_ML2_TENANT_NETWORK_TYPE="geneve"
-enable_service ovn-northd
-enable_service ovn-controller
-disable_service q-ovn-metadata-agent
-enable_service q-svc
-disable_service q-agt
-disable_service q-l3
-disable_service q-dhcp
-disable_service q-meta
-
 SWIFT_HASH=6663d6b56c1f479c8b4e70ab5c2666f5
 SWIFT_REPLICAS=1
 SWIFT_DATA_DIR=$DEST/data