Update libsemigroups_pybind11/transf.py

Co-authored-by: Joe Edwards <80713360+Joseph-Edwards@users.noreply.github.com>

Author: james-d-mitchell

libsemigroups_pybind11/transf.py

@@ -16,7 +16,7 @@
 from typing import Any as _Any, List, Union
 from typing_extensions import Self
 
-from _libsemigroups_pybind11 import (  # pylint: disable=no-name-in-module,unused-import
+from _libsemigroups_pybind11 import (  # pylint: disable=no-name-in-module
     PPerm1 as _PPerm1,
     PPerm2 as _PPerm2,
     PPerm4 as _PPerm4,