Remove incorrect link to CI results

Author: link2xt

src/lib.rs

@@ -1,8 +1,7 @@
-//! This crate lets you connect to and interact with servers that implement the IMAP protocol ([RFC
-//! 3501](https://tools.ietf.org/html/rfc3501) and various extensions). After authenticating with
-//! the server, IMAP lets you list, fetch, and search for e-mails, as well as monitor mailboxes for
-//! changes. It supports at least the latest three stable Rust releases (possibly even older ones;
-//! check the [CI results](https://travis-ci.com/jonhoo/rust-imap)).
+//! This crate lets you connect to and interact with servers that implement the IMAP protocol
+//! ([RFC 3501](https://tools.ietf.org/html/rfc3501) and various extensions).
+//! After authenticating with the server, IMAP lets you list, fetch, and search for e-mails,
+//! as well as monitor mailboxes for changes.
 //!
 //! To connect, use the [`connect`] function. This gives you an unauthenticated [`Client`]. You can
 //! then use [`Client::login`] or [`Client::authenticate`] to perform username/password or