enabling "none" cipher

[Nacho]

Hello,

I'm trying to enable the "none" cipher in OpenSSH 10.2 compiled for FreeBSD with
no success so far.

Is it possible that there is no native support for "none" cipher in OpenSSH and
this is just implemented by third party patches? 

This is my impression after looking at the FreeBSD patches for OpenSSH and
OpenSSH source code and docs, but just wanted to confirm it before trying to fix
it.

Maybe there has been some change in 10.x OpenSSH that breaks the "none" cipher
patch that used to work for 9.x?

This patch is called "extra-patch-hpn" in FreeBSD, still applies cleanly, but
after compiling it doesn't seem to work, the cipher "none" is not recognized no
matter what.