Neutron: Do not set removed allow_overlapping_ips

The parameter has been removed from neutron by [1].

[1] fde91e8059a9a23fb7ece6e3463984329c7ea581

Change-Id: I3b838ea741d19729d6fcf03c0478b1b4d8ec1213

Author: kajinamit

lib/neutron

@@ -213,7 +213,6 @@ function configure_neutron_new {
         iniset $NEUTRON_CONF DEFAULT core_plugin $NEUTRON_CORE_PLUGIN
 
         iniset $NEUTRON_CONF DEFAULT policy_file $policy_file
-        iniset $NEUTRON_CONF DEFAULT allow_overlapping_ips True
         iniset $NEUTRON_CONF DEFAULT router_distributed $NEUTRON_DISTRIBUTED_ROUTING
 
         iniset $NEUTRON_CONF DEFAULT auth_strategy $NEUTRON_AUTH_STRATEGY

lib/neutron-legacy

@@ -916,7 +916,6 @@ function _configure_neutron_service {
 
     iniset $NEUTRON_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
     iniset $NEUTRON_CONF oslo_policy policy_file $Q_POLICY_FILE
-    iniset $NEUTRON_CONF DEFAULT allow_overlapping_ips $Q_ALLOW_OVERLAPPING_IP
 
     iniset $NEUTRON_CONF DEFAULT auth_strategy $Q_AUTH_STRATEGY
     configure_keystone_authtoken_middleware $NEUTRON_CONF $Q_ADMIN_USERNAME