device: Remove hard dependency on base

lib/logitech_receiver/device.py

@@ -23,11 +23,9 @@ from typing import Any
 from typing import Callable
 from typing import Optional
 from typing import Protocol
-from typing import cast
 
 from solaar import configuration
 
-from . import base
 from . import descriptors
 from . import exceptions
 from . import hidpp10
@@ -62,9 +60,6 @@ class LowLevelInterface(Protocol):
         ...
 
 
-low_level_interface = cast(LowLevelInterface, base)
-
-
 class DeviceFactory:
     @staticmethod
     def create_device(low_level: LowLevelInterface, device_info, setting_callback=None):