From: Arjan van de Ven <arjan@fenrus.demon.nl>

The ray_cs driver author seemed to have assumed that he needs to exports
functions he registers with the core kernel via function pointers, that of
course isn't the case so the cleanup below removes this; these functions
aren't used anywhere else nor meant to be (they're even static).
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>