test: Start to migrate to docker's upstream tests

* Follow the upstream test suite's conventions.
* More migration to follow.

tests/paranoid.sh

@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-IMG=${IMG:-kylemanna/openvpn}
-
-temp=$(mktemp -d)
-
-pushd $temp
-
-SERV_IP=$(ip -4 -o addr show scope global  | awk '{print $4}' | sed -e 's:/.*::' | head -n1)
-
-docker run --net=none --rm -t -i -v $PWD:/etc/openvpn $IMG ovpn_genconfig -u udp://$SERV_IP
-
-docker run --net=none --rm -t -i -v $PWD:/etc/openvpn -e "EASYRSA_BATCH=1" -e "EASYRSA_REQ_CN=Travis-CI Test CA" kylemanna/openvpn ovpn_initpki nopass
-
-docker run --net=none --rm -t -i -v $PWD:/etc/openvpn $IMG ovpn_copy_server_files
-
-popd
-# Can't delete the temp directory as docker creates some files as root.
-# Just let it die with the test instance.
-rm -rf $temp || true