diff --git a/django/contrib/admin/helpers.py b/django/contrib/admin/helpers.py
index e673199e73..1dab27966f 100644
--- a/django/contrib/admin/helpers.py
+++ b/django/contrib/admin/helpers.py
@@ -14,11 +14,8 @@ from django.db.models.fields.related import ManyToManyRel
 from django.forms.utils import flatatt
 from django.template.defaultfilters import capfirst, linebreaksbr
 from django.utils import six
-from django.utils.deprecation import (
-    RemovedInDjango20Warning, RemovedInDjango110Warning,
-)
+from django.utils.deprecation import RemovedInDjango20Warning
 from django.utils.encoding import force_text, smart_text
-from django.utils.functional import cached_property
 from django.utils.html import conditional_escape, format_html
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
@@ -292,21 +289,6 @@ class InlineAdminForm(AdminForm):
         super(InlineAdminForm, self).__init__(form, fieldsets, prepopulated_fields,
             readonly_fields, model_admin)
 
-    @cached_property
-    def original_content_type_id(self):
-        warnings.warn(
-            'InlineAdminForm.original_content_type_id is deprecated and will be '
-            'removed in Django 1.10. If you were using this attribute to construct '
-            'the "view on site" URL, use the `absolute_url` attribute instead.',
-            RemovedInDjango110Warning, stacklevel=2
-        )
-        if self.original is not None:
-            # Since this module gets imported in the application's root package,
-            # it cannot import models from other applications at the module level.
-            from django.contrib.contenttypes.models import ContentType
-            return ContentType.objects.get_for_model(self.original).pk
-        raise AttributeError
-
     def __iter__(self):
         for name, options in self.fieldsets:
             yield InlineFieldset(self.formset, self.form, name,
diff --git a/tests/admin_inlines/tests.py b/tests/admin_inlines/tests.py
index e5e4a66a3b..6cbd0f60af 100644
--- a/tests/admin_inlines/tests.py
+++ b/tests/admin_inlines/tests.py
@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 
 import datetime
-import warnings
 
 from django.contrib.admin import ModelAdmin, TabularInline
 from django.contrib.admin.helpers import InlineAdminForm
@@ -10,7 +9,6 @@ from django.contrib.auth.models import Permission, User
 from django.contrib.contenttypes.models import ContentType
 from django.core.urlresolvers import reverse
 from django.test import RequestFactory, TestCase, override_settings
-from django.utils.encoding import force_text
 
 from .admin import InnerInline, site as admin_site
 from .models import (
@@ -458,28 +456,6 @@ class TestInlineAdminForm(TestCase):
         parent_ct = ContentType.objects.get_for_model(Parent)
         self.assertEqual(iaf.original.content_type, parent_ct)
 
-    def test_original_content_type_id_deprecated(self):
-        """
-        #23444 -- Verify a warning is raised when accessing
-        `original_content_type_id` attribute of `InlineAdminForm` object.
-        """
-        iaf = InlineAdminForm(None, None, {}, {}, None)
-        poll = Poll.objects.create(name="poll")
-        iaf2 = InlineAdminForm(None, None, {}, {}, poll)
-        poll_ct = ContentType.objects.get_for_model(Poll)
-        with warnings.catch_warnings(record=True) as recorded:
-            warnings.filterwarnings('always')
-            with self.assertRaises(AttributeError):
-                iaf.original_content_type_id
-            msg = force_text(recorded.pop().message)
-            self.assertEqual(
-                msg,
-                'InlineAdminForm.original_content_type_id is deprecated and will be '
-                'removed in Django 1.10. If you were using this attribute to construct '
-                'the "view on site" URL, use the `absolute_url` attribute instead.'
-            )
-            self.assertEqual(iaf2.original_content_type_id, poll_ct.id)
-
 
 @override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_inlines.urls")