Remove duplicate preferences in Accessibility settings.

- addPreferencesFromResource() call has been added to
InstrumentedPreferenceFragment, and hence sub-class should not call it
again.

Change-Id: Ia016d9d407ac3f838c962d1ced585647382a051a
Fixes: 68820835
Test: make RunSettingsRoboTests

src/com/android/settings/applications/ManageDomainUrls.java

@@ -63,9 +63,7 @@ public class ManageDomainUrls extends SettingsPreferenceFragment
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         setAnimationAllowed(true);
-        if (usePreferenceScreenTitle()) {
-            addPreferencesFromResource(R.xml.manage_domain_url_settings);
-        } else {
+        if (!usePreferenceScreenTitle()) {
             setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getContext()));
         }
         mApplicationsState = ApplicationsState.getInstance(
@@ -74,6 +72,11 @@ public class ManageDomainUrls extends SettingsPreferenceFragment
         setHasOptionsMenu(true);
     }
 
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.manage_domain_url_settings;
+    }
+
     @Override
     public void onViewCreated(View view, Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);