staging: w35und: Remove remaining typedef declarations

This patch removes remaining typedef declarations from the w35und driver. Most
of them were unused so I just killed them off completely.

Cc: Lars Lindley <lindley@coyote.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>