Remove the virtualbox kernel modules again; cyberjock has proven that
the kernel modules actually have to be shipped with the virtualbox-ose package
(or template or plugin) since the ABI contract is so loose that these kernel
modules can and will refuse to work with any given virtualbox version.  Since
users have to manually replace these modules anyway, there's not much point in
shipping them.

Conflicts:
	nanobsd/os-ports