message: doc: Remove reference to `Searcher` pool.
  The pool of searchers was removed in as part of
diff: @@ -263,8 +263,7 @@ impl InnerIndexReader {
  /// It controls when a new version of the index should be loaded and lends
  /// you instances of `Searcher` for the last loaded version.
  ///
  -/// `Clone` does not clone the different pool of searcher. `IndexReader`
  -/// just wraps an `Arc`.
  +/// `IndexReader` just wraps an `Arc`.
  #[derive(Clone)]
  pub struct IndexReader {
  inner: Arc<InnerIndexReader>,
  @@ -294,9 +293,6 @@ impl IndexReader {
  ///
  /// This method should be called every single time a search
  /// query is performed.
  - /// The searchers are taken from a pool of `num_searchers` searchers.
  - /// If no searcher is available
  - /// this may block.
  ///
  /// The same searcher must be used for a given query, as it ensures
  /// the use of a consistent segment set.
  