def delete_auth_info(self, url: str, username: str) -> bool:
        """Delete the password for the given url and username.
        Returns whether the operation is successful.
        """
        if self.provider is None or not self.enabled:
            return False
        try:
            self.provider.delete_auth_info(url, username)
            return True
        except Exception:
            self.enabled = False
            return False
Delete the password for the given url and username.
        Returns whether the operation is successful.
        
src/pdm/models/auth.py