diff --git a/djangorestframework/models.py b/djangorestframework/models.py
index e5e9101bc..5b53a5264 100644
--- a/djangorestframework/models.py
+++ b/djangorestframework/models.py
@@ -1,19 +1 @@
-""""""
-from django.db import models
-from django.contrib.auth import Permission, User
-
-class PermissionSet(models.Model):
-    """"""
-    name = models.CharField(unique=True, max_length=64)
-    description = models.CharField(max_length=512)
-    permissions = models.ManyToManyField(Permission, blank=True)
-
-
-class UserToken(models.Model):
-    """"""
-    token_key = models.CharField(max_length=30, unique=True)
-    token_secret = models.CharField(max_length=256)
-    user = models.ForeignKey(User)
-    permission_set = models.ForeignKey(PermissionSet, null=True, blank=True, help_text="If set then determines the subset of permissions that are granted by this token, rathen than granting full user permissions.")
-    expiry = models.DateTimeField(default=None, blank=True, null=True, help_text="If set then determines when the token will no longer be treated as valid.  If left empty the token will not expire.")
-    is_active = models.BooleanField(default=True)
+# Just to keep things like ./manage.py test happy