[Homepage Revamp] hide the scroll bar of homepage

Bug: 364612225
Test: visual
Flag: EXEMPT bugfix
Change-Id: I0d4c48ef6debfa82597db48a4320b0500f330b1b

src/com/android/settings/homepage/TopLevelSettings.java

@@ -251,6 +251,8 @@ public class TopLevelSettings extends DashboardFragment implements SplitLayoutLi
             Bundle savedInstanceState) {
         RecyclerView recyclerView = super.onCreateRecyclerView(inflater, parent,
                 savedInstanceState);
+        recyclerView.setVerticalScrollBarEnabled(false);
+        recyclerView.setHorizontalScrollBarEnabled(false);
         recyclerView.setPadding(mPaddingHorizontal, 0, mPaddingHorizontal, 0);
         return recyclerView;
     }