[PATCH] drivers/cdrom/cm206.c: cleanups

This patch contains the following cleanups:
- make needlessly global functions static
- remove the following unused global function:
  - cm206_delay
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>