fix huobi url

Helius

2022-05-10 80163ed89afd4d656b168070ced82d4f0cab0c7e

 src/main/java/com/xcong/excoin/modules/contract/service/ContractOrderService.java

@@ -10,5 +10,4 @@
 */
public interface ContractOrderService extends IService<ContractOrderEntity> {

    public Result submitOrder(SubmitOrderDto submitOrderDto);
}