Staging: comedi: David doesn't want to get comedi patches

He's long moved on from the project.
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/TODO

@@ -11,4 +11,3 @@ Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
 copy:
 	Ian Abbott <abbotti@mev.co.uk>
 	Frank Mori Hess <fmhess@users.sourceforge.net>
-	David Schleef <ds@schleef.org>