bug#20076: 24.4; x-nontext-pointer-shape not existent as option from Lisp code

[Eli Zaretskii]

> From: Noam Postavsky <npostavs@gmail.com>
> Date: Sun, 12 Aug 2018 20:05:32 -0400
> Cc: 20076@debbugs.gnu.org
> 
> > Is there any particular reason for this peculiar decision?  Or more
> > generally, why would a desirable feature be present, but commented out
> > from code?  Are there any special known caveats that led to it?
> 
> I think the reasons are lost to the mist of time, [1: af01ef2643] is the 
> commit
> which ifdefs it out; the changelog is not very enlightening.
> 
> [1: af01ef2643]: 1993-05-21 20:22:10 +0000
>   (syms_of_xfns): Don't make Lisp vars x-mode-pointer-shape and 
> x-nontext-pointer-shape.
>   
> https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=af01ef26430d69c04421aac4d862df4f5898a838

We could perhaps expose these variables to Lisp again, on master, and
see if that breaks something in the long run.