Disable server-side encryption on 4.x releases

You must disable server-side encryption using a EmrConfiguration object.

The following example creates an EmrCluster activity with server-side encryption disabled:

   {
      "name": "ReleaseLabelCluster",
      "releaseLabel": "emr-4.1.0",
      "applications": ["spark", "hive", "pig"],
      "id": "myResourceId",
      "type": "EmrCluster",
      "configuration": {
        "ref": "disableSSE"
      }
    },
    {
      "name": "disableSSE",
      "id": "disableSSE",
      "type": "EmrConfiguration",
      "classification": "emrfs-site",
      "property": [{
        "ref": "enableServerSideEncryption"
      }
      ]
    },
    {
      "name": "enableServerSideEncryption",
      "id": "enableServerSideEncryption",
      "type": "Property",
      "key": "fs.s3.enableServerSideEncryption",
      "value": "false"
    }