Remove the IsolatedManager and its associated playbooks and plugins

awx/settings/production.py

@@ -91,14 +91,4 @@ except IOError:
 
 # The below runs AFTER all of the custom settings are imported.
 
-CELERYBEAT_SCHEDULE.update(
-    {  # noqa
-        'isolated_heartbeat': {
-            'task': 'awx.main.tasks.awx_isolated_heartbeat',
-            'schedule': timedelta(seconds=AWX_ISOLATED_PERIODIC_CHECK),  # noqa
-            'options': {'expires': AWX_ISOLATED_PERIODIC_CHECK * 2},  # noqa
-        }
-    }
-)
-
 DATABASES['default'].setdefault('OPTIONS', dict()).setdefault('application_name', f'{CLUSTER_HOST_ID}-{os.getpid()}-{" ".join(sys.argv)}'[:63])  # noqa