clean removes @ and machine now, so no need to do it again.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274183 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Retire the '@' symlink. It isn't really needed and causes more
problems than it solves. SYSDIR is already defined almost always and
can be used instead. Working around the one case where it isn't is
much easier than working around the fact that @ may not exist in 18
other places.

Differential Revision: https://reviews.freebsd.org/D1100


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274184 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
These don't belong in the modules directory.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274185 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f