update test case

Author: Ekluv

tests/test_model_serializer.py

@@ -1100,11 +1100,5 @@ class Meta:
 
         UniqueChoiceModel.objects.create(name='choice1')
         serializer = TestUniqueChoiceSerializer(data={'name': 'choice1'})
-        expected = dedent("""
-            TestUniqueChoiceSerializer():
-                id = IntegerField(label='ID', read_only=True)
-                name = ChoiceField(choices=(('choice1', 'choice 1'), ('choice2', 'choice 1')), validators=[<UniqueValidator(queryset=UniqueChoiceModel.objects.all())>])
-        """)
-        self.assertEqual(unicode_repr(TestUniqueChoiceSerializer()), expected)
         assert not serializer.is_valid()
         assert serializer.errors == {'name': ['unique choice model with this name already exists.']}