Remove unnecessary #![feature]s from doctest.

m-ou-se · m-ou-se · commit af86b55735ba · 2022-03-03T12:09:18.000+01:00
diff --git a/library/std/src/thread/scoped.rs b/library/std/src/thread/scoped.rs
@@ -240,7 +240,6 @@ impl<'scope, T> ScopedJoinHandle<'scope, T> {
     ///
     /// ```
     /// #![feature(scoped_threads)]
-    /// #![feature(thread_is_running)]
     ///
     /// use std::thread;
     ///
@@ -274,7 +273,6 @@ impl<'scope, T> ScopedJoinHandle<'scope, T> {
     ///
     /// ```
     /// #![feature(scoped_threads)]
-    /// #![feature(thread_is_running)]
     ///
     /// use std::thread;
     ///
