'Reset YouTube Stub Server Configurations using the /del_config URL.
Raises:
YouTubeConfigError'

@classmethod
def reset(cls):

    youtube_stub_config_url = (cls.URL + 'del_config')
    response = requests.delete(youtube_stub_config_url)
    if (not response.ok):
        raise YouTubeConfigError('YouTube    Server    Configuration    Failed.    URL:    {0}    Status    was    {1}'.format(youtube_stub_config_url, response.status_code))
