Rollup merge of #30443 - tshepang:just-a-rename, r=steveklabnik

Author: steveklabnik

src/libcollections/slice.rs

@@ -909,15 +909,6 @@ pub trait SliceConcatExt<T: ?Sized> {
     #[stable(feature = "rename_connect_to_join", since = "1.3.0")]
     fn join(&self, sep: &T) -> Self::Output;
 
-    /// Flattens a slice of `T` into a single value `Self::Output`, placing a
-    /// given separator between each.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// # #![allow(deprecated)]
-    /// assert_eq!(["hello", "world"].connect(" "), "hello world");
-    /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_deprecated(since = "1.3.0", reason = "renamed to join")]
     fn connect(&self, sep: &T) -> Self::Output;