bug#70764: 29.1; M-x gdb: don't ask me about debuginfod server if debuginfod is not in context

[Eli Zaretskii]

> Cc: 70764@debbugs.gnu.org
> Date: Sat, 04 May 2024 17:11:52 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > Date: Sat, 4 May 2024 15:32:27 +0200
> > From: Rolf Ade <rolf@pointsman.de>
> > 
> > I don't know if my gdb support debug info downloading (see exact version 
> > info 
> > below) but if I answer the question with "n" - I don't want to enable this 
> > - I 
> > wonder why I'm (only mildly, of course) bothered with a not very helpful 
> > error 
> > message.
> 
> I don't know.  AFAIR, it was not supposed to happen in Emacs 29.1 and
> later.

FWIW, I just tried "M-x gdb" in Emacs 29.1, and didn't see any "No
symbol" messages after answering "n" to the debuginfod question.

My GDB on that system is version 12.1, though, and it was compiled
with debuginfod support.  So maybe that's the reason.