Allow wemo config entry to be unloaded (home-assistant#93082)

* Fix lingering timer in wemo

* Also stop the subscriptions

homeassistant/components/wemo/__init__.py

@@ -113,7 +113,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     wemo_dispatcher = WemoDispatcher(entry)
     wemo_discovery = WemoDiscovery(hass, wemo_dispatcher, static_conf)
 
-    async def async_stop_wemo(event: Event) -> None:
+    async def async_stop_wemo(_: Event | None = None) -> None:
         """Shutdown Wemo subscriptions and subscription thread on exit."""
         _LOGGER.debug("Shutting down WeMo event subscriptions")
         await hass.async_add_executor_job(registry.stop)
@@ -123,6 +123,7 @@ async def async_stop_wemo(event: Event) -> None:
     entry.async_on_unload(
         hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, async_stop_wemo)
     )
+    entry.async_on_unload(async_stop_wemo)
 
     # Need to do this at least once in case statistics are defined and discovery is disabled
     await wemo_discovery.discover_statics()
@@ -133,6 +134,12 @@ async def async_stop_wemo(event: Event) -> None:
     return True
 
 
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a wemo config entry."""
+    # This makes sure that `entry.async_on_unload` routines run correctly on unload
+    return True
+
+
 class WemoDispatcher:
     """Dispatch WeMo devices to the correct platform."""