diff --git a/src/vehicle_func.h b/src/vehicle_func.h
--- a/src/vehicle_func.h
+++ b/src/vehicle_func.h
@@ -59,10 +59,6 @@ void MarkSingleVehicleDirty(const Vehicl
 
 UnitID GetFreeUnitNumber(VehicleType type);
 
-void TrainConsistChanged(Vehicle *v, bool same_length);
-void TrainPowerChanged(Vehicle *v);
-Money GetTrainRunningCost(const Vehicle *v);
-
 CommandCost SendAllVehiclesToDepot(VehicleType type, DoCommandFlag flags, bool service, Owner owner, uint16 vlw_flag, uint32 id);
 void VehicleEnterDepot(Vehicle *v);