[AIRFLOW-6950] Remove refresh_executor_config from ti.refresh_from_db (…

…#7577)

cherry-picked from 6a9b951

airflow/models/taskinstance.py

@@ -453,13 +453,10 @@ def error(self, session=None):
         session.commit()
 
     @provide_session
-    def refresh_from_db(self, session=None, lock_for_update=False, refresh_executor_config=False):
+    def refresh_from_db(self, session=None, lock_for_update=False):
         """
         Refreshes the task instance from the database based on the primary key
 
-        :param refresh_executor_config: if True, revert executor config to
-            result from DB. Often, however, we will want to keep the newest
-            version
         :param lock_for_update: if True, indicates that the database should
             lock the TaskInstance (issuing a FOR UPDATE clause) until the
             session is committed.
@@ -494,8 +491,6 @@ def refresh_from_db(self, session=None, lock_for_update=False, refresh_executor_
             self.operator = ti.operator
             self.queued_dttm = ti.queued_dttm
             self.pid = ti.pid
-            if refresh_executor_config:
-                self.executor_config = ti.executor_config
         else:
             self.state = None