Clean up DeviceAdminSetting: make it into DashboardFragment

Change-Id: Ib5634f782daef15ab317175084c6813d6b8a8bb7
Fixes: 110207366
Test: robo
diff --git a/res/xml/special_access.xml b/res/xml/special_access.xml
index b7a8e5c..574686a 100644
--- a/res/xml/special_access.xml
+++ b/res/xml/special_access.xml
@@ -35,7 +35,8 @@
         android:key="device_administrators"
         android:title="@string/manage_device_admin"
         android:fragment="com.android.settings.applications.specialaccess.deviceadmin.DeviceAdminSettings"
-        settings:controller="com.android.settings.applications.specialaccess.deviceadmin.DeviceAdministratorsController" />
+        android:summary="@string/summary_placeholder"
+        settings:controller="com.android.settings.enterprise.ManageDeviceAdminPreferenceController" />
 
     <Preference
         android:key="system_alert_window"