[PATCH] DocBook: remove obsolete templates

As the author of tulip-user and via-audio docbooks, I can say that they are
out of date and should be deleted.

Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>