remove some out-of-update doc
remove some out-of-update doc

Wangcankun/admin,redbtn/admin,pingpong-labs/admin,matheusgomes17/admin,choeng/admin,choeng/admin,redbtn/admin,Wangcankun/admin,Wangcankun/admin,matheusgomes17/admin,pingpong-labs/admin,pingpong-labs/admin,choeng/admin,redbtn/admin,matheusgomes17/admin