Remove release-0.1 and create jobs for release-0.2 (#553)
Remove release-0.1 and create jobs for release-0.2 (#553)

Automatic merge from submit-queue.

Remove release-0.1 and create jobs for release-0.2

Removing support for 0.1 as we won't be created patch release for it.

Created specific jobs for 0.2 as we updated bazel in master which is incompatible with 0.2

```release-note
none
```
istio/test-infra,istio/test-infra,istio/test-infra,istio/test-infra