RE: Delete variables obsolete since Emacs 23

[Drew Adams]

> I think the gentle annoyance we have now strikes the right balance
> between not letting people forget the fact of obsolescence and not
> annoying them too much.  We are talking to adults, not to children, so
> we can rely on them doing TRT.

+1.  It's obsolete, but we leave it in the product,
so as to not annoy those who don't, or can't easily,
work around its absence.