python: Use python3 style super() in 2FA code paths.

zerver/views/auth.py

@@ -564,7 +564,7 @@ class TwoFactorLoginView(BaseTwoFactorLoginView):
         super().__init__(*args, **kwargs)
 
     def get_context_data(self, **kwargs: Any) -> Dict[str, Any]:
-        context = super(TwoFactorLoginView, self).get_context_data(**kwargs)
+        context = super().get_context_data(**kwargs)
         if self.extra_context is not None:
             context.update(self.extra_context)
         update_login_page_context(self.request, context)

zproject/settings.py

@@ -488,7 +488,7 @@ ALLOWED_HOSTS += REALM_HOSTS.values()
 from django.template.loaders import app_directories
 class TwoFactorLoader(app_directories.Loader):
     def get_dirs(self):
-        dirs = super(TwoFactorLoader, self).get_dirs()
+        dirs = super().get_dirs()
         return [d for d in dirs if 'two_factor' in d]
 
 MIDDLEWARE = (