remove lib

@@ -8,7 +8,6 @@ const captchaService = require('../models/captcha-service');
 const helpers = global.yoho.helpers;
 const CAPTCHA = 'yoho4946abcdef#$%&!@';
 const request = require('request');
-const uuid = require('uuid');
 
 // 对比函数
 const _mustEqual = (req) => {