Deletes a campaign feed.

  Args:
    client: an AdWordsClient instance.
    campaign_feed: the campaign feed to delete.

def DeleteCampaignFeed(client, campaign_feed):
  """Deletes a campaign feed.

  Args:
    client: an AdWordsClient instance.
    campaign_feed: the campaign feed to delete.
  """
  campaign_feed_service = client.GetService('CampaignFeedService', 'v201809')

  operation = {
      'operand': campaign_feed,
      'operator': 'REMOVE'
  }

  campaign_feed_service.mutate([operation])