Fix 'defined but not used' warnings with enable-small/disable-management

Fix 'defined but not used' warnings with enable-small/disable-management

Some functions are only used when management is used or enable-small is
not used. Fix the ifdefs to correctly also include these helper
functions the ifdefs to avoid compile errors when using -Werror

Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20220214021054.3750071-1-arne@rfc2549.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23779.html

Signed-off-by: Gert Doering <gert@greenie.muc.de>