bug#64735: 29.0.92; find invocations are ~15x slower because of ignores

[Eli Zaretskii]

> Cc: Dmitry Gutov <dmitry@gutov.dev>, 64735@debbugs.gnu.org
> From: Spencer Baugh <sbaugh@janestreet.com>
> Date: Thu, 20 Jul 2023 13:08:24 -0400
> 
> (Really it's entirely plausible that Emacs could be improved by
> *removing* directory-files-recursively, in favor of invoking find as a
> subprocess: faster, parallelized execution, and better remote support.)

No, there's no reason to remove anything that useful from Emacs.  If
this or that API is not the optimal choice for some job, it is easy
enough not to use it.