Remove align_adjust frame code

Remove align_adjust frame code

The align_adjust variable was only set to a non-zero value when
no cipher was used for the data channel. Since we no longer want to
optimise non encrypted data channel traffic, remove this optimisation
and simplify the code.

Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20211207170211.3275837-4-arne@rfc2549.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23331.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>