Revert "fix modules_install via NFS"

This reverts commit 8b249b68.

This 'fix' is not necessary; we just need to undo the damage caused
accidentally by Igor/Mauro in 4b29631d


("V4L/DVB (9533): cx88: Add support for TurboSight TBS8910 DVB-S PCI card")

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>