Update maintenance.md

Author: SethTisue

doc/maintenance.md

@@ -39,8 +39,7 @@ Tips for addressing gradually dwindling free space:
       (`jobs/*/builds`) that we're unlikely to need to refer to again.
       There are different ways to do this; see e.g.
       [this Stack Overflow question](https://stackoverflow.com/questions/13052390/jenkins-remove-old-builds-with-command-line).
-      Example command that worked for me: `curl -u SethTisue:myauthkey -X POST 'https://scala-ci.typesafe.com/job/scala-2.11.x-integrate-community-build/[750-900]/doDelete'` where `SethTisue` is my GitHub user name and `myauthkey` is actually a hex thing I generated [on GitHub](https://github.com/settings/tokens).
-     (Jul 30 2020) gah but last time I tried this I hit https://github.com/spinnaker/spinnaker/issues/2067 — not sure what to do 
+      Example command that worked for me: `curl -u SethTisue:myauthkey -X POST 'https://scala-ci.typesafe.com/job/scala-2.11.x-integrate-community-build/[750-900]/doDelete'` where `SethTisue` is my GitHub user name and `myauthkey` is actually a hex thing I generated [on GitHub](https://github.com/settings/tokens). But then (July 2020) it stopped working; see https://github.com/scala/scala-jenkins-infra/issues/257
 
 Tips for addressing a temporary free-space issue on the behemoths: