message: Optimize webapp example, remove unnecessary from_iter
diff: @@ -21,7 +21,6 @@ use std::fs;
  use std::{
  collections::{HashMap, HashSet},
  env,
  - iter::FromIterator,
  path::PathBuf,
  };
  @@ -54,7 +53,7 @@ fn create_cache_path_if_absent(cookies: &Cookies) -> PathBuf {
  path.pop();
  fs::create_dir_all(path).unwrap();
  }
  - cache_path.clone()
  + cache_path
  }
  fn remove_cache_path(mut cookies: Cookies) {
  @@ -80,11 +79,10 @@ fn init_spotify() -> SpotifyBuilder {
  let oauth = OAuthBuilder::default()
  .redirect_uri("http://localhost:8000/callback")
  .scope(
  - HashSet::from_iter(
  scope
  .split_whitespace()
  .map(|x| x.to_owned())
  - )
  + .collect::<HashSet<_>>(),
  )
  .build()
  .unwrap();
  