Remove confusing comment about X11.

Remove confusing comment about X11.

Sat Feb  3 11:28:03 2001  Owen Taylor  <otaylor@redhat.com>

	* configure.in: Remove confusing comment about X11.

Fri Feb  2 19:21:23 2001  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdkwindow.c (gdk_propagate_shapes): Surround additional
	regions with HAVE_SHAPE_EXT. (#50511, Eric Ding)

Fri Feb  2 18:31:54 2001  Owen Taylor  <otaylor@redhat.com>

	* gdk/x11/gdkimage-x11.c: Remove definition of _XOPEN_SOURCE, since
	it breaks things on BSD. If you want to compile GTK+ with
	-ansi -pedantic, you should supply CPP_FLAGS=_XOPEN_SOURCE
	when configuring, since GTK+ simply can't be "pure ANSI"
	in the header files it uses. (#8170, Greg Hudson)