Remove reparse on DAG depending on asset alias (#44866)

I suspect we no longer need this since alias resolution now happens very
late in the scheduling process. A DAG *should* be able to automatically
understand the alias is resolved without a reparse after refactorings
introduced in cccc933.

airflow/assets/manager.py

@@ -174,11 +174,6 @@ def register_asset_change(
                     if alias_ref.dag.is_active and not alias_ref.dag.is_paused
                 }
 
-        dags_to_reparse = dags_to_queue_from_asset_alias - dags_to_queue_from_asset
-        if dags_to_reparse:
-            file_locs = {dag.fileloc for dag in dags_to_reparse}
-            cls._send_dag_priority_parsing_request(file_locs, session)
-
         cls.notify_asset_changed(asset=asset)
 
         Stats.incr("asset.updates")

tests/assets/test_manager.py

@@ -34,7 +34,6 @@
     DagScheduleAssetReference,
 )
 from airflow.models.dag import DagModel
-from airflow.models.dagbag import DagPriorityParsingRequest
 from airflow.sdk.definitions.asset import Asset, AssetAlias
 
 from tests.listeners import asset_listener
@@ -139,7 +138,6 @@ def test_register_asset_change_with_alias(self, session, dag_maker, mock_task_in
         # Ensure we've created an asset
         assert session.query(AssetEvent).filter_by(asset_id=asm.id).count() == 1
         assert session.query(AssetDagRunQueue).count() == 2
-        assert session.query(DagPriorityParsingRequest).count() == 2
 
     def test_register_asset_change_no_downstreams(self, session, mock_task_instance):
         asset_manager = AssetManager()