Upgraded to Python Social Auth 0.2.21 to resolve migration issue

openedx/core/djangoapps/monkey_patch/third_party_auth.py

@@ -1,38 +0,0 @@
-"""
-Monkey patch implementation for a python_social_auth Django ORM method that is not Django 1.8-compatible.
-Remove once the module fully supports Django 1.8!
-"""
-
-from django.db import transaction
-from social.storage.django_orm import DjangoUserMixin
-from social.apps.django_app.default.models import (
-    UserSocialAuth, Nonce, Association, Code
-)
-
-
-def patch():
-    """
-    Monkey-patch the DjangoUserMixin class.
-    """
-    def create_social_auth_wrapper(wrapped_func):
-        # pylint: disable=missing-docstring
-        wrapped_func = wrapped_func.__func__
-
-        def _create_social_auth(*args, **kwargs):
-            # The entire reason for this monkey-patch is to wrap the create_social_auth call
-            # in an atomic transaction. The call can sometime raise an IntegrityError, which is
-            # caught and dealt with by python_social_auth - but not inside of an atomic transaction.
-            # In Django 1.8, unless the exception is raised in an atomic transaction, the transaction
-            # becomes unusable after the IntegrityError exception is raised.
-            with transaction.atomic():
-                return wrapped_func(*args, **kwargs)
-        return classmethod(_create_social_auth)
-
-    DjangoUserMixin.create_social_auth = create_social_auth_wrapper(DjangoUserMixin.create_social_auth)
-
-    # Monkey-patch some social auth models' Meta class to squelch Django19 warnings.
-    # pylint: disable=protected-access
-    UserSocialAuth._meta.app_label = "default"
-    Nonce._meta.app_label = "default"
-    Association._meta.app_label = "default"
-    Code._meta.app_label = "default"