[damned-lies] Remove remaining stuff from social_django

[Claude Paroz <claudep src gnome org>]

commit 79fdd10e267abfe12fa8a0b9649e4a85431d6ea8
Author: Claude Paroz <claude 2xlibre net>
Date:   Tue Jan 5 21:58:02 2021 +0100

    Remove remaining stuff from social_django

 damnedlies/settings.py | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/damnedlies/settings.py b/damnedlies/settings.py
index 1b3baa18..ec1c760d 100644
--- a/damnedlies/settings.py
+++ b/damnedlies/settings.py
@@ -125,7 +125,6 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
-    'social_django.middleware.SocialAuthExceptionMiddleware',
 ]
 
 ATOMIC_REQUESTS = True
@@ -155,7 +154,6 @@ INTERNAL_IPS=('127.0.0.1',)
 SITE_DOMAIN = 'l10n.gnome.org'
 
 LOGIN_REDIRECT_URL = '/'
-LOGIN_ERROR_URL = '/'  # Used by social_django
 
 # Members of this group can edit all team's details and change team coordinatorship
 ADMIN_GROUP = ''