今天刚刚接手老板的微信公众号，发现自定义菜单里几个URL显示是我们公众号发布的内容，但是我居然在后台根本找不到这三篇文章的发布记录。请问怎么删除这三篇文章，文章内容已过期。

http://mp.weixin.qq.com/s?__biz=Mzg3MTAwMjkxMQ==&mid=100000046&idx=1&sn=e0e439d1bcf3dbded886468470a6b96e&chksm=4e84675e79f3ee484c3ce543fa5f5678dca171d4779d4b349224ba77968d54cf14c4bb63cd25&scene=18#wechat_redirect

http://mp.weixin.qq.com/s?__biz=Mzg3MTAwMjkxMQ==&mid=100000034&idx=1&sn=2ca135da0d72f1d8d8a1050e16b9181a&chksm=4e84675279f3ee44afd2bddc174df21468ca659b8768f71c9043e24424754b59027b51c13069&scene=18#wechat_redirect

http://mp.weixin.qq.com/s?__biz=Mzg3MTAwMjkxMQ==&mid=100000016&idx=1&sn=cc9432a90f14880aa1c1a899c2ab0c62&chksm=4e84676079f3ee769b26b502fb88f22cdab4cb6a8b48ffc325b442da452c594d2f9a5001e596&scene=18#wechat_redirect