Remove android_java_ui as it is not used

chrome/browser/bookmarks/bookmark_model_factory.cc

Index: chrome/browser/bookmarks/bookmark_model_factory.cc
diff --git a/chrome/browser/bookmarks/bookmark_model_factory.cc b/chrome/browser/bookmarks/bookmark_model_factory.cc
index 65d995ea4d5f8e7a73ef2532b16cd7479bbb545e..42976a7d004b23bcab29c589ab827237249fdf9c 100644
--- a/chrome/browser/bookmarks/bookmark_model_factory.cc
+++ b/chrome/browser/bookmarks/bookmark_model_factory.cc
@@ -71,11 +71,11 @@ KeyedService* BookmarkModelFactory::BuildServiceInstanceFor(
                        content::BrowserThread::GetTaskRunnerForThread(
                            content::BrowserThread::UI));
   bool register_bookmark_undo_service_as_observer = true;
-#if !BUILDFLAG(ANDROID_JAVA_UI)
+#if !defined(OS_ANDROID)
   register_bookmark_undo_service_as_observer =
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableBookmarkUndo);
-#endif  // !BUILDFLAG(ANDROID_JAVA_UI)
+#endif  // !defined(OS_ANDROID)
   if (register_bookmark_undo_service_as_observer)
     BookmarkUndoServiceFactory::GetForProfile(profile)->Start(bookmark_model);