Remove deprecated destination field from Translation job creation

[rtisma]

Currently postman collections in Modelderivative_04 contains the following payload when creating a job

{
    "result": "success",
    "urn": "dXJuOmFkc2sub2JqZWN0czsdfsdfpvcy5vYmplY3Y3dfsdsdfODkwL1N1c3BlbnNpb24xMjMuemlw",
    "acceptedJobs": {
        "output": {
            "destination": {
                "region": "us"
            },
            "formats": [
                {
                    "type": "svf2",
                    "views": [
                        "2d",
                        "3d"
                    ]
                }
            ]
        }
    }
}

According to the body schema, output.destination is deprecated and the region should be defined in the header.