Remove the feature flag for using new title.

- remove all code that check for the feature flag, and use the new logic
by default.

Change-Id: I7fbe60da84c1c0f35e7241402a71d2bc4cd300e6
Fixes: 64564191
Test: make RunSettingsRoboTests

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

@@ -124,14 +124,8 @@ public class PremiumSmsAccess extends EmptyTextSettings implements Callback, Cal
         if (apps == null) return;
         setEmptyText(R.string.premium_sms_none);
         setLoading(false, true);
-        final PreferenceScreen screen;
-        if (usePreferenceScreenTitle()) {
-            screen = getPreferenceScreen();
-            screen.removeAll();
-        } else {
-            screen = getPreferenceManager().createPreferenceScreen(getPrefContext());
-        }
-
+        final PreferenceScreen screen = getPreferenceScreen();
+        screen.removeAll();
         screen.setOrderingAsAdded(true);
 
         for (int i = 0; i < apps.size(); i++) {
@@ -145,10 +139,6 @@ public class PremiumSmsAccess extends EmptyTextSettings implements Callback, Cal
             footer.setTitle(R.string.premium_sms_warning);
             screen.addPreference(footer);
         }
-
-        if (!usePreferenceScreenTitle()) {
-            setPreferenceScreen(screen);
-        }
     }
 
     private void update() {