puppet-neutron duplicates auth information in neutron.conf and api-paste.ini

When puppet-neutron is configuring a Neutron server, it is duplicating auth information in neutron.conf and api-paste.ini, for example:

      neutron_config {
        'keystone_authtoken/admin_tenant_name': value => $auth_tenant;
        'keystone_authtoken/admin_user': value => $auth_user;
        'keystone_authtoken/admin_password': value => $auth_password, secret => true;
      }

      neutron_api_config {
        'filter:authtoken/admin_tenant_name': value => $auth_tenant;
        'filter:authtoken/admin_user': value => $auth_user;
        'filter:authtoken/admin_password': value => $auth_password, secret => true;
      }

Some distros (e.g. RDO) do not even ship /etc/neutron/api-paste.ini, but /usr/share/neutron/api-paste.ini, and this file is not meant to be modified by the operator. In those cases, the file is created using default permissions, which is not a good idea.

If no distro requires configuring api-paste.ini, I would propose removing all instances of neutron_api_config when they are duplicating information already present in neutron.conf.