Delete a runtime field from a data view
DELETE
/api/data_views/data_view/{viewId}/runtime_field/{fieldName}
curl \
--request DELETE 'https://<KIBANA_URL>/api/data_views/data_view/ff959d40-b880-11e8-a6d9-e546fe2bba5f/runtime_field/hour_of_day' \
--header "Authorization: $API_KEY"