swagger schema hardocded and references ibm properties

This schema should not include IBM specific properties:

See https://github.com/apache/incubator-openwhisk-client-go/blob/1759868a61729708a8ab1a6de1b409d6e2aea00a/whisk/api.go#L153-L154

I think the entire struct should be removed anyway - it overly restricts the schema unnecessarily.