Delete pipeline

  curl -X DELETE 
  --url http://localhost:6789/api/pipelines/arwen_starlight
  -H 'Content-Type: application/json' 
  -H 'Cookie: oauth_token=some_really_long_string' 
  -H 'X-API-KEY: zkWlN0PkIKSN0C11CfUHUj84OT5XOJ6tDZ6bDRO2' 

{
  "pipeline": {
    "data_integration": null,
    "description": null,
    "executor_config": {},
    "executor_count": 1,
    "executor_type": null,
    "name": "arwen-starlight",
    "notification_config": {},
    "type": "integration",
    "updated_at": null,
    "uuid": "arwen_starlight",
    "spark_config": {},
    "blocks": [],
    "callbacks": [],
    "conditionals": [],
    "widgets": []
  }
}