Clean up preference_summary_default_combination in Settings.

Test: Existing tests passed
Flag: EXEMPT clean up
Bug: 328519240
Change-Id: I86996c43243b7a8e2d4b1a83180c189986b3a6ca

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

@@ -42,7 +42,8 @@ public class CaptioningAppearancePreferenceController extends BasePreferenceCont
 
     @Override
     public CharSequence getSummary() {
-        return mContext.getString(R.string.preference_summary_default_combination,
+        return mContext.getString(
+                com.android.settingslib.R.string.preference_summary_default_combination,
                 geFontScaleSummary(), getPresetSummary());
     }