nixos/acme: remove doc note about restarting nginx

Discussion from #30945 indicates that it is no longer true that you have
to restart nginx.

Changed files
-3
nixos
modules
security
-3
nixos/modules/security/acme.xml
···
};
}
</programlisting>
-
-
<para>At the moment you still have to restart Nginx after the ACME
-
certs arrive.</para>
</section>
</chapter>