Refs #23919 -- Removed python_2_unicode_compatible decorator usage

tests/admin_utils/models.py

@@ -1,10 +1,8 @@
 from django.db import models
 from django.utils import six
-from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
 
-@python_2_unicode_compatible
 class Site(models.Model):
     domain = models.CharField(max_length=100)
 
@@ -34,7 +32,6 @@ class ArticleProxy(Article):
         proxy = True
 
 
-@python_2_unicode_compatible
 class Count(models.Model):
     num = models.PositiveSmallIntegerField()
     parent = models.ForeignKey('self', models.CASCADE, null=True)