fix style issue found by flake8

src/nominatim_db/clicmd/convert.py

@@ -15,10 +15,6 @@ from pathlib import Path
 from ..errors import UsageError
 from .args import NominatimArgs
 
-# Do not repeat documentation of subcommand classes.
-# pylint: disable=C0111
-# Using non-top-level imports to avoid eventually unused imports.
-# pylint: disable=E0012,C0415
 
 class WithAction(argparse.Action):
     """ Special action that saves a list of flags, given on the command-line
@@ -43,7 +39,6 @@ class WithAction(argparse.Action):
 
         super().__init__(full_option_strings, argparse.SUPPRESS, nargs=0, **kwargs)
 
-
     def __call__(self, parser: argparse.ArgumentParser, namespace: argparse.Namespace,
                  values: Union[str, Sequence[Any], None],
                  option_string: Optional[str] = None) -> None:
@@ -81,7 +76,6 @@ class ConvertDB:
         group.add_argument('--details', action=WithAction, dest_set=self.options, default=True,
                            help='Enable/disable support for details API (default: enabled)')
 
-
     def run(self, args: NominatimArgs) -> int:
         if args.output.exists():
             raise UsageError(f"File '{args.output}' already exists. Refusing to overwrite.")