Removed unnecessary links + hotfix

Author: olegnn

src/stream/stream/flatten.rs

@@ -53,7 +53,7 @@ where
         loop {
             if let Some(inner) = this.inner_stream.as_mut().as_pin_mut() {
                 match futures_core::ready!(inner.poll_next(cx)) {
-                    item @ Some(_) => return Poll::Ready(next_item),
+                    item @ Some(_) => return Poll::Ready(item),
                     None => this.inner_stream.set(None),
                 }
             }

tests/stream.rs

@@ -154,7 +154,6 @@ impl Stream for Interchanger {
     }
 }
 
-// https://github.com/async-rs/async-std/pull/701
 #[test]
 fn flat_map_doesnt_poll_completed_inner_stream() {
     task::block_on(async {
@@ -169,7 +168,6 @@ fn flat_map_doesnt_poll_completed_inner_stream() {
     });
 }
 
-// https://github.com/async-rs/async-std/pull/701
 #[test]
 fn flatten_doesnt_poll_completed_inner_stream() {
     task::block_on(async {