[PRQ#39363] Deletion Request for roundcubemail-html5_notifier

lod [1] filed a deletion request for roundcubemail-html5_notifier [2]: Doesn't work anymore and no upstream updates. Looks like no one used it anyway, so please remove. [1] https://aur.archlinux.org/account/lod/ [2] https://aur.archlinux.org/pkgbase/roundcubemail-html5_notifier/