remove requirement that links belong to segments

backend/app/get_links.py

@@ -15,14 +15,12 @@
     results.link_dir,
     InitCap(attr.st_name) AS st_name,
     results.seq,
-    seg_lookup.segment_id,
     ST_AsGeoJSON(streets.geom) AS geojson,
     ST_Length( ST_Transform(streets.geom,2952) ) AS length_m
 FROM results
 JOIN here.routing_streets_22_2 AS streets USING ( link_dir )
 JOIN here_gis.streets_att_22_2 AS attr 
     ON attr.link_id::int = left(link_dir, -1)::int
-JOIN congestion.network_links_22_2 AS seg_lookup USING ( link_dir )
 ORDER BY seq;
 '''
 
@@ -43,10 +41,9 @@ def get_links(from_node_id, to_node_id):
                     'link_dir': link_dir,
                     'name': st_name,
                     'sequence': seq,
-                    'segment_id': segment_id,
                     'geometry': json.loads(geojson),
                     'length_m': length_m
-                } for link_dir, st_name, seq, segment_id, geojson, length_m in cursor.fetchall()
+                } for link_dir, st_name, seq, geojson, length_m in cursor.fetchall()
             ]
 
     connection.close()