CI: remove deprecated tornado environment variable
ASYNC_TEST_TIMEOUT is deprecated now and JupyterHub has transitioned away from it.
ref:
@@ -45,7 +45,6 @@ env:
- TEST=auth
- TEST=helm
global:
- - ASYNC_TEST_TIMEOUT=15
# minikube version: https://github.com/kubernetes/minikube/releases
- MINIKUBE_VERSION=1.10.1
# kubernetes version: https://github.com/kubernetes/kubernetes/releases
