bug#34663: remove ftx font backend

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Stefan Kangas <stefan@marxist.se>,  34663@debbugs.gnu.org
> Date: Tue, 07 Jan 2020 00:05:36 +0100
> 
>     Eli>   . please add a NEWS entry about ftx's removal (in the "Installation
>     Eli>     Changes" section)
>     Eli>   . please add a NEWS entry on the emacs-27 branch saying that this
>     Eli>     font backend is deprecated and will be removed
> 
> Can we do something similar for XFT (and flip --with-cairo to
> enabled)?

I understand about enabling Cairo, but what exactly are you proposing
to do with XFT?