Remove old Software Helpdesk post stub

There were two posts on launch of the HIFIS Software helpdesk in mid 2020; but only one should remain; the other should be deleted.

Redirect is implemented to link from the latter to the former, just in case somebody has archived the wrong link.

_posts/2020/06/2020-06-01-helpdesk-launch.md

@@ -10,6 +10,8 @@ categories:
 tags:
   - general
   - support
+redirect_from:
+  - news/2020/06/01/hifis-software-helpdesk-launched
 excerpt:
     "
     We are happy to announce the launch of the HIFIS Software Helpdesk - the