Support caption second UI structure (4/n)

Always show preview text on windows.

Bug: 143502915
Test: manual
Change-Id: I65b48373905fc59a664c51500613f1dc509b5c8f

src/com/android/settings/accessibility/CaptionAppearanceFragment.java

@@ -122,10 +122,6 @@ public class CaptionAppearanceFragment extends SettingsPreferenceFragment
         refreshPreviewText();
     }
 
-    private void refreshPreferenceViewEnabled(boolean enabled) {
-        mPreviewText.setVisibility(enabled ? View.VISIBLE : View.INVISIBLE);
-    }
-
     private void refreshPreviewText() {
         final Context context = getActivity();
         if (context == null) {
@@ -217,8 +213,6 @@ public class CaptionAppearanceFragment extends SettingsPreferenceFragment
         mPreferenceList.add(mFontSize);
         mPreferenceList.add(mPreset);
 
-        refreshPreferenceViewEnabled(mCaptioningManager.isEnabled());
-
         mCustom = (PreferenceCategory) findPreference(PREF_CUSTOM);
         mShowingCustom = true;