Fix removing the vnf relations from the right list

Change-Id: Ib5fadaa6ad266d1756969a01ce34f82389c48d61
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/osm_lcm/ns.py b/osm_lcm/ns.py
index ab224cb..1f97761 100644
--- a/osm_lcm/ns.py
+++ b/osm_lcm/ns.py
@@ -2375,11 +2375,11 @@
                                     if vca.get('vdu_id') == r.get('entities')[0].get('id'):
                                         if vca_status.get('status') == 'BROKEN':
                                             # peer broken: remove relation from list
-                                            ns_relations.remove(r)
+                                            vnf_relations.remove(r)
                                     if vca.get('vdu_id') == r.get('entities')[1].get('id'):
                                         if vca_status.get('status') == 'BROKEN':
                                             # peer broken: remove relation from list
-                                            ns_relations.remove(r)
+                                            vnf_relations.remove(r)
                         except Exception:
                             # ignore
                             pass