Remove live tests

.env

.env.1ive.bridge

.env.hopping

.env.hopping.kcp

.env.hopping.quic

.env.hoppingkcp.live.bridge

.env.kcp

.env.kcp.live.bridge

.env.kcp.live.gw

.env.quic

.gitlab-ci.yml

docker-compose.yml

images/obfsvpn-client/Dockerfile

images/obfsvpn-client/data/riseup.ovpn

images/obfsvpn-client/start.sh

images/obfsvpn/scripts/start_obfsvpn.sh

images/openvpn-server/scripts/start.sh

scripts/generate_livetest_credentials.sh

scripts/integration-test.sh