Mode code cleaning: remove obsolete references to EXTRA_NO_HEADERS

- the EXTRA_NO_HEADERS flag as no more meaning as we are showing
the Tiles (previously named "Headers") only in the Dashboard
(which is the main Settings screen)

Change-Id: I55656de0d28ca9c84adbe6647d870838b4ac230b

src/com/android/settings/ChooseLockGeneric.java

@@ -46,7 +46,6 @@ public class ChooseLockGeneric extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockGenericFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }