Subject: bug#53067: NonGNU ELPA: Packages removed from elpa-packages still on archive

From: Stefan Kangas <[email-masked]>
Date: Fri, 7 Jan 2022 02:31:25 -0600

In this commit, a package was removed:

    commit 340e98ee8d52185c8c65f0ce59bb61d5a188a9f4
    Author: Philip Kaludercic <[email-masked]>
    Date:   Fri Oct 22 19:20:45 2021 +0200

        * elpa-packages (color-theme-tangotango): Remove package

However, it still is available for download:

    https://elpa.nongnu.org/nongnu/color-theme-tangotango.html

Should we remove packages automatically if they are not listed in
elpa-packages?