message: Removed unnecessary attributes in lib.rs
diff: -// #![feature(non_ascii_idents)]
  -#![allow(clippy::needless_doctest_main)]
  -#![allow(dead_code)]
  //! ## Description
  //! Rspotify is a lightweight wrapper for the [Spotify Web API](https://developer.spotify.com/web-api/) It includes helper functions for
  //! **all Spotify's endpoints**, such as fetching metadata (search and look-up of
  