Remove unused method

articles/models.py

@@ -61,13 +61,6 @@ class Article(AdminUrlMixin, models.Model):
             type_ = "Page"
         return f"{self.title} ({type_})"
 
-    def get_admin_url(self):
-        content_type = ContentType.objects.get_for_model(self.__class__)
-        return reverse(
-            "admin:%s_%s_change" % (content_type.app_label, content_type.model),
-            args=(self.id,),
-        )
-
     def get_absolute_url(self):
         return reverse("article-detail", kwargs={"slug": self.slug})