Adding a new mixer test job, and remove e2e-pilot which uses v1alpha1… (#893)
Adding a new mixer test job, and remove e2e-pilot which uses v1alpha1… (#893)

* Adding a new mixer test job, and remove e2e-pilot which uses v1alpha1 (obsolete)

* Fix formatting problem

* Fix formatting problem

istio/test-infra,istio/test-infra,istio/test-infra,istio/test-infra