Remove unused import

Stjepan Glavina · Stjepan Glavina · commit 5438258ceec7 · 2019-11-11T13:19:59.000+01:00
diff --git a/src/stream/from_fn.rs b/src/stream/from_fn.rs
@@ -28,7 +28,6 @@ impl<F> Unpin for FromFn<F> {}
 /// #
 /// use async_std::prelude::*;
 /// use async_std::stream;
-/// use async_std::sync::{Arc, Mutex};
 ///
 /// let mut count = 0u8;
 /// let s = stream::from_fn(|| {
