Drop support for python3.6 in kubeflow pipelines. Remove tests.

[ji-yaqi]

No description provided.

[google-oss-prow]

Hi @ji-yaqi. Thanks for your PR.

I'm waiting for a GoogleCloudPlatform member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[chensun]

/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chensun, ji-yaqi

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[google-oss-prow]

@ji-yaqi: Updated the job-config configmap in namespace default at cluster default using the following files:

• key kubeflow-pipelines-presubmits.yaml using file prow/prowjobs/kubeflow/pipelines/kubeflow-pipelines-presubmits.yaml

In response to this:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.