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

This reverts commit 7ed3ceb960.

passbook/providers/oidc/claims.py

@@ -0,0 +1,14 @@
+"""passbook oidc claim helpers"""
+from typing import Any, Dict
+
+from passbook.core.models import User
+
+
+def userinfo(claims: Dict[str, Any], user: User) -> Dict[str, Any]:
+    """Populate claims from userdata"""
+    claims["name"] = user.name
+    claims["given_name"] = user.name
+    claims["family_name"] = user.name
+    claims["email"] = user.email
+
+    return claims