Avoid creating tasks to update universal media player (#116350)

* Avoid creating tasks to update universal media player

Nothing was being awaited in async_update. This entity has polling
disabled and there was no reason to implement manual updates since
the state is always coming from other entities

* manual update

homeassistant/components/universal/media_player.py

@@ -162,7 +162,7 @@ def __init__(
     ):
         """Initialize the Universal media device."""
         self.hass = hass
-        self._name = config.get(CONF_NAME)
+        self._attr_name = config.get(CONF_NAME)
         self._children = config.get(CONF_CHILDREN)
         self._active_child_template = config.get(CONF_ACTIVE_CHILD_TEMPLATE)
         self._active_child_template_result = None
@@ -189,7 +189,8 @@ def _async_on_dependency_update(
         ) -> None:
             """Update ha state when dependencies update."""
             self.async_set_context(event.context)
-            self.async_schedule_update_ha_state(True)
+            self._async_update()
+            self.async_write_ha_state()
 
         @callback
         def _async_on_template_update(
@@ -213,7 +214,8 @@ def _async_on_template_update(
             if event:
                 self.async_set_context(event.context)
 
-            self.async_schedule_update_ha_state(True)
+            self._async_update()
+            self.async_write_ha_state()
 
         track_templates: list[TrackTemplate] = []
         if self._state_template:
@@ -306,11 +308,6 @@ def master_state(self):
 
         return None
 
-    @property
-    def name(self):
-        """Return the name of universal player."""
-        return self._name
-
     @property
     def assumed_state(self) -> bool:
         """Return True if unable to access real state of the entity."""
@@ -659,7 +656,8 @@ async def async_browse_media(
             return await entity.async_browse_media(media_content_type, media_content_id)
         raise NotImplementedError
 
-    async def async_update(self) -> None:
+    @callback
+    def _async_update(self) -> None:
         """Update state in HA."""
         if self._active_child_template_result:
             self._child_state = self.hass.states.get(self._active_child_template_result)
@@ -676,3 +674,7 @@ async def async_update(self) -> None:
                         self._child_state = child_state
                 else:
                     self._child_state = child_state
+
+    async def async_update(self) -> None:
+        """Manual update from API."""
+        self._async_update()