Restore the default configuration and remove the user's config file.

def reset(self):
        """
        Restore the default configuration and remove the user's config file.
        """

        # Delete user config file
        try:
            os.remove(self._user_config_file)
        except FileNotFoundError:
            pass

        # Empty and refill the config object
        for section_name in self.sections():
            self.remove_section(section_name)
        self.read_defaults()