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

This reverts commit 7ed3ceb960.

passbook/providers/oauth/api.py

@@ -0,0 +1,29 @@
+"""OAuth2Provider API Views"""
+from rest_framework.serializers import ModelSerializer
+from rest_framework.viewsets import ModelViewSet
+
+from passbook.providers.oauth.models import OAuth2Provider
+
+
+class OAuth2ProviderSerializer(ModelSerializer):
+    """OAuth2Provider Serializer"""
+
+    class Meta:
+
+        model = OAuth2Provider
+        fields = [
+            "pk",
+            "name",
+            "redirect_uris",
+            "client_type",
+            "authorization_grant_type",
+            "client_id",
+            "client_secret",
+        ]
+
+
+class OAuth2ProviderViewSet(ModelViewSet):
+    """OAuth2Provider Viewset"""
+
+    queryset = OAuth2Provider.objects.all()
+    serializer_class = OAuth2ProviderSerializer