Removed reference to non existing path

[rajeeshckr]

Looks like platform-agnostic-pns folder seems to be removed in this commit

I hope platform-agnostic is the new one to use.

Also, there was an error with workflow-controller and metadata-envoy-deployment using the same port causing crash loop. I modified the workflow-controller deployment to change the to a non conflicting port.

[google-oss-prow[bot]]

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[hbelmiro]

/ok-to-test

[hbelmiro]

@chensun can you PTAL?

[google-oss-prow[bot]]

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