Remvoe django-polymorphic tests

Now that we are not overriding .iterator() custom querysets with their
iterator() is not an issue anymore.

test_requirements.txt

@@ -3,4 +3,3 @@ redis>=2.9.1
 funcy>=1.2,<2.0
 six>=1.4.0
 before_after==1.0.0
-django-polymorphic>=1.0.2

tests/models.py

@@ -212,18 +212,3 @@ def set_boolean_true(sender, instance, created, **kwargs):
 
 from django.db.models.signals import post_save
 post_save.connect(set_boolean_true, sender=One)
-
-
-try:
-    from polymorphic.models import PolymorphicModel
-
-    class PolymorphicA(PolymorphicModel):
-        pass
-
-    class PolymorphicB(PolymorphicA):
-        pass
-
-    class PolymorphicZ(models.Model):
-        a = models.ForeignKey(PolymorphicA)
-except:
-    PolymorphicModel = None

tests/settings.py

@@ -101,8 +101,6 @@
     'tests.noncachedvideoproxy': None,
     'tests.noncachedmedia': None,
     'auth.*': {},
-    'tests.polymorphica': {'ops': 'all', 'timeout': 60 * 15},
-    'tests.polymorphicb': {'ops': 'all', 'timeout': 60 * 15},
 }
 
 CACHEOPS_LRU = bool(os.environ.get('CACHEOPS_LRU'))

tests/tests.py

@@ -925,16 +925,6 @@ def _target():
         self.assertEqual(results[0], results[1])
 
 
-# TODO: remove this test when .iterator() is dropped
-@unittest.skipIf(PolymorphicModel is None, "django-polumorphic doesn't work with Django 2.0")
-class PolymorphicTests(BaseTestCase):
-    def test_polymorphic(self):
-        b = PolymorphicB.objects.create()
-        z = PolymorphicZ.objects.create(a=b)
-        z2 = PolymorphicZ.objects.get(id=z.id)
-        self.assertEqual(type(z2.a), PolymorphicB)
-
-
 # Utilities
 
 def _make_inc(deco=lambda x: x):

tox.ini

@@ -21,7 +21,6 @@ deps =
     py{27,33,34,35,36}: psycopg2
     pypy: psycopg2cffi
     before_after==1.0.0
-    django-polymorphic>=1.0.2
 commands =
     ./run_tests.py []
     env CACHEOPS_LRU=1 ./run_tests.py []