Subject: bug#34663: remove ftx font backend

From: Eli Zaretskii <[email-masked]>
Date: Wed, 15 Jan 2020 19:24:18 +0200

Btw, I think we should remove admin/notes/font-backend instead of
continuing its maintenance.  It is already outdated, and I don't
really see how it could be useful even if we update it to mention
HarfBuzz etc.