code: function smsDeleteCampaign(callback, campaign_id) {
      if (campaign_id === undefined) {
          return callback(returnError("Empty sms campaign id"));
      }
      var data = {
          'id': campaign_id
      }
      sendRequest('sms/campaigns', 'DELETE', data, true, callback);
  }
docs: Remove sms campaign
  
  @param callback
  @param campaign_id