fix neighbor_v4 tests

Author: wpjunior

networkapi/api_neighbor/v4/tests/neighbor_v4/sanity/sync/test_delete.py

@@ -27,6 +27,7 @@ class NeighborV4DeleteSuccessTestCase(NetworkApiTestCase):
         fixtures_path.format('initial_ipv4.json'),
         fixtures_path.format('initial_asn.json'),
         fixtures_path.format('initial_route_map.json'),
+        fixtures_path.format('initial_peer_group.json'),
         fixtures_path.format('initial_equipment.json'),
         fixtures_path.format('initial_asn_equipment.json'),
         fixtures_path.format('initial_ipv4_equipment.json'),