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>

drivers/staging/nvec/TODO

@@ -1,5 +1,4 @@
 ToDo list (incomplete, unordered)
 	- move the driver to the new i2c slave framework
 	- finish suspend/resume support
-	- fix udelay in the isr
 	- add atomic ops in order to fix shutoff/reboot problems