code: function deleteMessengerProfile (fields) {
    return new Promise (async (resolve, reject) => {
      if (!fields || !Array.isArray(fields)) {
        reject('Valid fields array required');
      }
  
      try {
        let response = await this.callMessengerProfileApi({'fields': fields});
        resolve(response);
      } catch (e) {
        reject(e);
      }
    });
  }
docs: Deletes one or more properties of your bot's [Messenger Profile](https://developers.facebook.com/docs/messenger-platform/reference/messenger-profile-api).
  @param  {Array<String>}  fields  _Optional._ An array list of the Messenger Profile filds to delete.
  @return {Promise<Object>}  The API response
  @memberof  Client#
  @example
  let fields = ['whitelisted_domains', 'greeting'];
  Client.deleteMessengerProfile(fields)
  .then(res => {
  console.log(res); // {"id": "9485676932424"}
  });