diff --git a/src/vehicle_func.h b/src/vehicle_func.h
--- a/src/vehicle_func.h
+++ b/src/vehicle_func.h
@@ -68,8 +68,6 @@ void TrainConsistChanged(Vehicle *v);
 void TrainPowerChanged(Vehicle *v);
 Money GetTrainRunningCost(const Vehicle *v);
 
-/* Old style list kept for migration */
-uint GenerateVehicleSortList(const Vehicle*** sort_list, uint16 *length_of_array, VehicleType type, PlayerID owner, uint32 index, uint16 window_type);
 void GenerateVehicleSortList(VehicleList *list, VehicleType type, PlayerID owner, uint32 index, uint16 window_type);
 void BuildDepotVehicleList(VehicleType type, TileIndex tile, VehicleList *engine_list, VehicleList *wagon_list);
 CommandCost SendAllVehiclesToDepot(VehicleType type, uint32 flags, bool service, PlayerID owner, uint16 vlw_flag, uint32 id);