Comment 16 for bug 1137510

Actually, any distro using xfree86.cf is either still using XFree86 and
not these files, or has patched it locally - either case it's a waste
of time to update our copy.

I've gone ahead and pushed this additional patch to git, since no one cares
enough to clean out the crud in the imake config files given how little used
they are these days since the mass migration to autotools.