Cleanup some things (Removed stale comment and add semicolon to express statement)

Author: cynecx

crossbeam-epoch/src/sync/queue.rs

@@ -154,7 +154,6 @@ impl<T> Queue<T> {
                                 let _ = self.tail.compare_and_set(tail, next, Release, guard);
                             }
                             guard.defer_destroy(head);
-                            // TODO: Replace with MaybeUninit::read when api is stable
                             Some(n.data.as_ptr().read())
                         })
                         .map_err(|_| ())

crossbeam-queue/src/array_queue.rs

@@ -188,7 +188,7 @@ impl<T> ArrayQueue<T> {
                 ) {
                     Ok(_) => {
                         // Write the value into the slot and update the stamp.
-                        unsafe { slot.value.get().write(MaybeUninit::new(value)) }
+                        unsafe { slot.value.get().write(MaybeUninit::new(value)); }
                         slot.stamp.store(tail + 1, Ordering::Release);
                         return Ok(());
                     }