Merge remote-tracking branch 'remotes/origin/develop/wap' into beta/wap

@@ -82,7 +82,6 @@ if (goodsDiscountHammer && $discountFolder.children().length > 0) {
 
 $('#limit-sale').on('touchend', function(e) {
     var loginUrl = $('#loginUrl').val(),
-        u = navigator.userAgent,
         ifr;
 
     e.stopPropagation();
@@ -96,7 +95,6 @@ $('#limit-sale').on('touchend', function(e) {
                 rightBtnText: '打开Yoho!Buy有货APP'
             }
         }, function() {
-
                 ifr = document.createElement('iframe');
                 ifr.src = appUrl;
                 ifr.style.display = 'none';