staging: nvec: update TODO

Remove isr delay from the bill.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/20240406123123.37148-6-marvin24@gmx.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>