nixos/lib/test-driver: remove legacy args handling

        name: Optional[str] = None,

        keep_vm_state: bool = False,

    ) -> Machine:

        # Legacy args handling

        # FIXME: remove after 24.05

        if isinstance(start_command, dict):

            if name is not None or keep_vm_state:

                raise TypeError(

                    "Dictionary passed to create_machine must be the only argument"

                )

            args = start_command

            start_command = args.pop("startCommand", SENTINEL)

            if start_command is SENTINEL:

                raise TypeError(

                    "Dictionary passed to create_machine must contain startCommand"

                )

            if not isinstance(start_command, str):

                raise TypeError(

                    f"startCommand must be a string, got: {repr(start_command)}"

                )

            name = args.pop("name", None)

            keep_vm_state = args.pop("keep_vm_state", False)

            if args:

                raise TypeError(

                    f"Unsupported arguments passed to create_machine: {args}"

                )

            self.logger.warning(

                Fore.YELLOW

                + Style.BRIGHT

                + "WARNING: Using create_machine with a single dictionary argument is deprecated and will be removed in NixOS 24.11"

                + Style.RESET_ALL

            )

        # End legacy args handling

        tmp_dir = get_tmp_dir()

        cmd = NixStartScript(start_command)