Disables rights management provided by :class:`fatbotslim.handlers.RightsHandler`.

def disable_rights(self):
        """
        Disables rights management provided by :class:`fatbotslim.handlers.RightsHandler`.
        """
        for handler in self.handlers:
            if isinstance(handler, RightsHandler):
                self.handlers.remove(handler)
                break
        self.rights = None