Removed an unnecessary import

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16332 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/auth/middleware.py

@@ -4,10 +4,8 @@ from django.utils.functional import SimpleLazyObject
 
 
 def get_user(request):
-    from django.contrib.auth import get_user
-
     if not hasattr(request, '_cached_user'):
-        request._cached_user = get_user(request)
+        request._cached_user = auth.get_user(request)
     return request._cached_user