remove changelog item

Author: rhpvorderman

HISTORY.rst

@@ -7,11 +7,6 @@ Changelog
 .. This document is user facing. Please word the changes in such a way
 .. that users understand how the changes affect the new version.
 
-version 1.2.4
----------------------------
-+ Fix error in cromwell example which did not allow it to remove folders
-  correctly.
-
 version 1.2.3
 ---------------------------
 + Added missing ``help`` section for ``--tag`` on the CLI.