Fix linting errors

Author: chrisdoherty4

custom_components/maint/config_flow.py

@@ -4,7 +4,6 @@
 
 from typing import TYPE_CHECKING, Any
 
-import voluptuous as vol
 from homeassistant import config_entries
 
 from .const import (
@@ -15,8 +14,6 @@
 if TYPE_CHECKING:
     from collections.abc import Mapping
 
-    from homeassistant.config_entries import ConfigEntry
-
 
 class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     """Handle a config flow for Maint."""