Remove search indexing pipeline from Settings

Index is already handled by SettingsIntelligenec. No longer needed in
Settings.

Change-Id: Id43fb3100dc2759185744441cff8cb9cd2d2da20
Fixes: 69808376
Test: robotests

src/com/android/settings/search/SearchFeatureProvider.java

@@ -42,13 +42,6 @@ public interface SearchFeatureProvider {
     void verifyLaunchSearchResultPageCaller(Context context, @NonNull ComponentName caller)
             throws SecurityException, IllegalArgumentException;
 
-    /**
-     * Synchronously updates the Settings database.
-     */
-    void updateIndex(Context context);
-
-    DatabaseIndexingManager getIndexingManager(Context context);
-
     /**
      * @return a {@link SearchIndexableResources} to be used for indexing search results.
      */