[PATCH] lockdown: remove useless decrement operation

[Nicolas Bouchinet]

Hi Kalevi, thanks for your contribution,

While it is true the len variable decrementing is not used anywhere and
that it would be cleaner to remove it, ideally we should go through a
more in depth Lockdown code cleaning.
I'll include it with Cai's one[1] when a more consequent patch will be
ready. I'll thus keep it somewhere with the patch until then.

I have a two week holiday starting this Friday and will thus not be available
until the 26th of may. Xiu, and Cai, if you want to work on it I'll gladly
review the patch set.

[1]: https://lore.kernel.org/all/20260119091226.3195309-1-caixinchen1@huawei.com/

Best regards,

Nicolas