openvpnmsica: Simplify find_adapters() to void return

openvpnmsica: Simplify find_adapters() to void return

As the find_adapters() failure is not critical and FindSystemInfo()
should continue regardless, the find_adapters() has been simplified not
to return result code. It still logs any error though.

Signed-off-by: Simon Rozman <simon@rozman.si>
Acked-by: Lev Stipakov <lstipakov@gmail.com>
Message-Id: <20200924065519.1839-1-simon@rozman.si>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg21077.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>