修改侧边栏点透、长安问题

@@ -4,7 +4,6 @@
  * @date: 2015/10/12
  */
 var $ = require('jquery'),
-    Hammer = require('yoho.hammer'),
     Swiper = require('yoho.iswiper'),
     lazyLoad = require('yoho.lazyload'),
     $mobileWrap = $('.mobile-wrap'),
@@ -23,8 +22,6 @@ var start = 0,
     openSideNav = false,
     isen = true;
 
-var navHammer;
-
 lazyLoad($('img.lazy'));
 
 $('.nav-btn').on('touchstart', function(event) {