Staging: ipack: remove last TODO items

The code is checkpatch clean, and the logic and flow looks good to me,
so I don't think there's anything left to do here.

Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Cc: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ipack/TODO

@@ -9,12 +9,6 @@ boards.
 The ipack driver is just an abstraction of the bus providing the common
 operations between the two kind of boards.
 
-TODO
-====
-
-checkpatch.pl warnings
-cleanup
-
 Contact
 =======