Fix a whoopsie daisy in the changelog.

CHANGELOG

@@ -3,7 +3,6 @@ Please view this file on the master branch, on stable branches it's out of date.
 v 7.10.0 (unreleased)
   - Don't leak existence of project via search autocomplete.
   - Don't leak existence of group or project via search.
-  - Fix broken file browsing with a submodule that contains a relative link (Stan Hu)
   - Fix bug where Wiki pages that included a '/' were no longer accessible (Stan Hu)
   - Fix bug where error messages from Dropzone would not be displayed on the issues page (Stan Hu)
   - Add ability to configure Reply-To address in gitlab.yml (Stan Hu)