Refs #23919 -- Removed python_2_unicode_compatible decorator usage

tests/modeladmin/models.py

@@ -1,9 +1,7 @@
 from django.contrib.auth.models import User
 from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
 
 
-@python_2_unicode_compatible
 class Band(models.Model):
     name = models.CharField(max_length=100)
     bio = models.TextField()