fix memory leak on upnp handler

Author: andrew-ld

.pylintrc

@@ -15,4 +15,4 @@ max-returns=15
 max-public-methods=25
 
 [MESSAGES CONTROL]
-disable=missing-function-docstring,missing-module-docstring,invalid-overridden-method,cyclic-import,missing-class-docstring,super-init-not-called,broad-except,protected-access,duplicate-code
+disable=missing-function-docstring,missing-module-docstring,invalid-overridden-method,cyclic-import,missing-class-docstring,super-init-not-called,broad-except,protected-access,duplicate-code,consider-using-with

smart_tv_telegram/devices/upnp_device.py

@@ -272,6 +272,8 @@ async def on_close(self, local_token: int):
         if task is not None:
             await task.close()
 
+        self._notify_handler.remove_device(local_token)
+
     async def play(self, url: str, title: str, local_token: int):
         set_url = self._service.action("SetAVTransportURI")
         meta = _DLL_METADATA.format(title=escape(ascii_only(title)), url=escape(url), flags=_VIDEO_FLAGS)