diff --git a/wagtail/wagtailadmin/tests/test_widgets.py b/wagtail/wagtailadmin/tests/test_widgets.py
index 7aee1ab0f7..8da3ea2a2f 100644
--- a/wagtail/wagtailadmin/tests/test_widgets.py
+++ b/wagtail/wagtailadmin/tests/test_widgets.py
@@ -1,12 +1,8 @@
 from __future__ import absolute_import, unicode_literals
 
-import warnings
-
-from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
 
 from wagtail.tests.testapp.models import EventPage, SimplePage
-from wagtail.utils.deprecation import RemovedInWagtail17Warning
 from wagtail.wagtailadmin import widgets
 from wagtail.wagtailcore.models import Page
 
@@ -70,30 +66,6 @@ class TestAdminPageChooserWidget(TestCase):
             js_init, "createPageChooser(\"test-id\", [\"tests.simplepage\", \"tests.eventpage\"], null, false);"
         )
 
-    def test_render_js_init_with_content_type(self):
-        with warnings.catch_warnings(record=True) as ws:
-            warnings.simplefilter('always')
-            content_type = ContentType.objects.get_for_model(SimplePage)
-            widget = widgets.AdminPageChooser(content_type=content_type)
-
-            self.assertEqual(len(ws), 1)
-            self.assertIs(ws[0].category, RemovedInWagtail17Warning)
-        self.assertEqual(widget.target_models, [SimplePage])
-
-    def test_render_js_init_with_multiple_content_types(self):
-        with warnings.catch_warnings(record=True) as ws:
-            warnings.simplefilter('always')
-            content_types = [
-                # Not using get_for_models as we need deterministic ordering
-                ContentType.objects.get_for_model(SimplePage),
-                ContentType.objects.get_for_model(EventPage),
-            ]
-            widget = widgets.AdminPageChooser(content_type=content_types)
-
-            self.assertEqual(len(ws), 1)
-            self.assertIs(ws[0].category, RemovedInWagtail17Warning)
-        self.assertEqual(widget.target_models, [SimplePage, EventPage])
-
     def test_render_js_init_with_can_choose_root(self):
         widget = widgets.AdminPageChooser(can_choose_root=True)
 
diff --git a/wagtail/wagtailadmin/widgets.py b/wagtail/wagtailadmin/widgets.py
index 30f6f9846d..f99ce1c721 100644
--- a/wagtail/wagtailadmin/widgets.py
+++ b/wagtail/wagtailadmin/widgets.py
@@ -2,22 +2,18 @@ from __future__ import absolute_import, unicode_literals
 
 import itertools
 import json
-import warnings
 from functools import total_ordering
 
-from django.contrib.contenttypes.models import ContentType
 from django.core.urlresolvers import reverse
 from django.forms import widgets
 from django.forms.utils import flatatt
 from django.template.loader import render_to_string
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.formats import get_format
-from django.utils.functional import cached_property
 from django.utils.html import format_html
 from django.utils.translation import ugettext_lazy as _
 from taggit.forms import TagWidget
 
-from wagtail.utils.deprecation import RemovedInWagtail17Warning
 from wagtail.utils.widgets import WidgetWithScript
 from wagtail.wagtailcore import hooks
 from wagtail.wagtailcore.models import Page
@@ -137,31 +133,12 @@ class AdminPageChooser(AdminChooser):
     choose_another_text = _('Choose another page')
     link_to_chosen_text = _('Edit this page')
 
-    def __init__(self, target_models=None, content_type=None, can_choose_root=False, **kwargs):
+    def __init__(self, target_models=None, can_choose_root=False, **kwargs):
         super(AdminPageChooser, self).__init__(**kwargs)
 
         self.target_models = list(target_models or [Page])
-
-        if content_type is not None:
-            if target_models is not None:
-                raise ValueError("Can not set both target_models and content_type")
-            warnings.warn(
-                'The content_type argument for AdminPageChooser() is deprecated. Use the target_models argument instead',
-                category=RemovedInWagtail17Warning)
-            if isinstance(content_type, ContentType):
-                self.target_models = [content_type.model_class()]
-            else:
-                self.target_models = [ct.model_class() for ct in content_type]
-
         self.can_choose_root = can_choose_root
 
-    @cached_property
-    def target_content_types(self):
-        warnings.warn(
-            'AdminPageChooser.target_content_types is deprecated. Use AdminPageChooser.target_models instead',
-            category=RemovedInWagtail17Warning)
-        return list(ContentType.objects.get_for_models(*self.target_models).values())
-
     def _get_lowest_common_page_class(self):
         """
         Return a Page class that is an ancestor for all Page classes in