diff --git a/django/db/models/__init__.py b/django/db/models/__init__.py
index 3582720e55..2ad89b3ed5 100644
--- a/django/db/models/__init__.py
+++ b/django/db/models/__init__.py
@@ -15,8 +15,6 @@ from django.db.models.deletion import CASCADE, PROTECT, SET, SET_NULL, SET_DEFAU
 from django.db.models import signals
 from django.utils.decorators import wraps
 
-# Admin stages.
-ADD, CHANGE, BOTH = 1, 2, 3
 
 def permalink(func):
     """