COMPAT_43 users?

[Mark Johnston]

On Wed, Aug 01, 2018 at 04:27:04PM +0100, Warner Losh wrote:
> On Wed, Aug 1, 2018, 4:25 PM Mark Johnston <markj at freebsd.org> wrote:
> 
> > On Wed, Aug 01, 2018 at 04:15:09AM -0600, Warner Losh wrote:
> > > Comments say it's needed for Linux emulation and for running FreeBSD 1,
> > 2,
> > > or 3 binaries. It's still compiled for PowerPC kernels. Despite it's
> > name,
> > > it looks like removing it would be somewhat complicated...
> >
> > It's not required for Linux emulation anymore.
> >
> 
> Then we can fix the comments...

I fixed one: https://svnweb.freebsd.org/base?view=revision&revision=337015

I didn't see any other places that documented the dependency.