diff --git a/core/modules/history/history.module b/core/modules/history/history.module
index 4aa995b..0dfad16 100644
--- a/core/modules/history/history.module
+++ b/core/modules/history/history.module
@@ -137,7 +137,6 @@ function history_node_view_alter(&$build, EntityInterface $node, EntityDisplay $
   if (($display->originalMode === 'full') && \Drupal::currentUser()->isAuthenticated()) {
     $build['#attached'] = array(
       'js' => array(
-        // @todo Move this functionality into a js file.
         // When the window's "load" event is triggered, mark the node as read.
         // This still allows for Drupal behaviors (which are triggered on the
         // "DOMContentReady" event) to add "new" and "updated" indicators.