Minor linting improvements

I have now disabled W1203 globally, see comment in
pyproject.toml

openflexure_microscope/api/v2/views/actions/stage.py

@@ -1,11 +1,8 @@
 import logging
-from typing import List, Tuple
 
 from labthings import fields, find_component
 from labthings.views import ActionView
 
-from openflexure_microscope.utilities import axes_to_array
-
 
 class MoveStageAPI(ActionView):
     args = {

openflexure_microscope/utilities.py

@@ -4,7 +4,7 @@ import logging
 import sys
 import time
 from contextlib import contextmanager
-from typing import Dict, List, Optional, Tuple, Type, Union, Sequence
+from typing import Dict, List, Optional, Sequence, Tuple, Type, Union
 
 import numpy as np