Revert "*: providers and sources -> channels, PolicyModel to PolicyBindingModel that uses custom M2M through"

This reverts commit 7ed3ceb960.

passbook/core/migrations/0013_delete_debugpolicy.py

@@ -0,0 +1,16 @@
+# Generated by Django 3.0.5 on 2020-05-10 10:01
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("passbook_policies", "0003_auto_20200508_1642"),
+        ("passbook_stages_password", "0001_initial"),
+        ("passbook_core", "0012_delete_factor"),
+    ]
+
+    operations = [
+        migrations.DeleteModel(name="DebugPolicy",),
+    ]