staging: vc04_services: Cleanup TODO entry

The TODO entry "Fix behvaiour of message handling" no longer
applies due to killable completions [1]. Drop the entry from TODO list.

[1] https://lore.kernel.org/all/20240918163100.870596-1-umang.jain@ideasonboard.com/

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Link: https://lore.kernel.org/r/20241107194806.90408-2-umang.jain@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Umang Jain

drivers/staging/vc04_services/interface/TODO

@@ -26,12 +26,3 @@ kthreads, userspace, limitations) could be very helpful for reviewers.
 The code follows the 80 characters limitation yet tends to go 3 or 4 levels of
 indentation deep making it very unpleasant to read. This is specially relevant
 in the character driver ioctl code and in the core thread functions.
-
-* Fix behavior of message handling
-
-The polling behavior of vchiq_bulk_transmit(), vchiq_bulk_receive() and
-vchiq_queue_kernel_message() looks broken. A possible signal should be
-propagated back to user space to let the calling task handle it before
-retrying. Hopefully these msleep(1) shouldn't be necessary anymore.
-
-https://lore.kernel.org/linux-staging/CAK8P3a3HGm1cPo4sW9fOY4E8AN8yAq3tevXxU5m8bmtmsU8WKw@mail.gmail.com/