bug#22743: 25.0.91: set-quit-char does not work if emacs lacks a controlling tty

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: Duncan Burke <duncankburke@gmail.com>,  22743@debbugs.gnu.org
> Date: Sat, 20 Feb 2016 15:36:50 -0500
> 
> Eli Zaretskii wrote:
> 
> >  C-g is supported implicitly and explicitly in many more places. Grep
> > the Lisp sources for C-g to see that.
> 
> This is http://debbugs.gnu.org/1218, which has seen zero interest since
> it was filed 6 years ago, following
> 
> http://lists.gnu.org/archive/html/emacs-devel/2008-10/msg00485.html

In which there's a suggestion to remove the feature.