Remove unneeded cast in logbook rest api (home-assistant#123098)

Author: bdraco

homeassistant/components/logbook/rest_api.py

@@ -5,7 +5,7 @@
 from collections.abc import Callable
 from datetime import timedelta
 from http import HTTPStatus
-from typing import Any, cast
+from typing import Any
 
 from aiohttp import web
 import voluptuous as vol
@@ -109,13 +109,6 @@ async def get(
 
         def json_events() -> web.Response:
             """Fetch events and generate JSON."""
-            return self.json(
-                event_processor.get_events(
-                    start_day,
-                    end_day,
-                )
-            )
+            return self.json(event_processor.get_events(start_day, end_day))
 
-        return cast(
-            web.Response, await get_instance(hass).async_add_executor_job(json_events)
-        )
+        return await get_instance(hass).async_add_executor_job(json_events)