bug#54633: [PATCH] * configure.ac: Fix --without-gif for W32, NS, Haiku, and PGTK.

[Eli Zaretskii]

> Date: Wed, 30 Mar 2022 13:34:22 +0000
> From: Randy Taylor <dev@rjt.dev>
> Cc: Po Lu <luangruo@yahoo.com>, 54633@debbugs.gnu.org
> 
> If someone specifies "--without-gif", then Emacs should not build
> with gif support.

Only on systems where --without-gif indeed removes the GIF support.
For example, if GIF support is built-in with native image display,
then using --without-gif is meaningless.