Remove GKE networking workaround
It wasn't working (we didn't grant the pod the permissions to modify
iptables) and it has also been backed out of upstream Kubernetes.
@@ -44,7 +44,4 @@ if [[ -n ${version} ]]; then
export GOPATH="${ORIGINAL_GOPATH}"
fi
-# Work around networking issues, see https://github.com/kubernetes/test-infra/issues/23741
-iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-
kubekins-runner.sh "$@"
