Fix hasura console warning

There was an extra metadata configuration stating an non-existent
relationship. There is no journey_pattern_ref_id in timetable_version

Resolves HSLdevcom/jore4#1366

metadata/hsl/databases/timetables/tables/return_value_timetable_version.yaml

@@ -8,9 +8,6 @@ object_relationships:
   - name: vehicle_schedule_frame
     using:
       foreign_key_constraint_on: vehicle_schedule_frame_id
-  - name: journey_pattern_ref
-    using:
-      foreign_key_constraint_on: journey_pattern_ref_id
   - name: substitute_operating_day_by_line_type
     using:
       foreign_key_constraint_on: substitute_operating_day_by_line_type_id