remove the legacy fact cleanup system template

see: https://github.com/ansible/tower/issues/1021

awx/main/migrations/0037_v330_remove_legacy_fact_cleanup.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+# AWX
+from awx.main.migrations._scan_jobs import remove_legacy_fact_cleanup
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('main', '0036_v330_credtype_remove_become_methods'),
+    ]
+
+    operations = [
+        migrations.RunPython(remove_legacy_fact_cleanup),
+    ]

awx/main/migrations/_scan_jobs.py

@@ -102,3 +102,11 @@ def remove_scan_type_nodes(apps, schema_editor):
                 prompts.pop('job_type')
                 node.char_prompts = prompts
                 node.save()
+
+
+def remove_legacy_fact_cleanup(apps, schema_editor):
+    SystemJobTemplate = apps.get_model('main', 'SystemJobTemplate')
+    for job in SystemJobTemplate.objects.filter(job_type='cleanup_facts').all():
+        for sched in job.schedules.all():
+            sched.delete()
+        job.delete()