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>