Purge the App Launcher code from Windows.

ui/app_list/test/app_list_test_view_delegate.cc

Index: ui/app_list/test/app_list_test_view_delegate.cc
diff --git a/ui/app_list/test/app_list_test_view_delegate.cc b/ui/app_list/test/app_list_test_view_delegate.cc
index b08ef9a4ee60f4f3705170941a99ff427c8cc86d..3270830bee580cbdc3cea4a6da03ce78fff446b6 100644
--- a/ui/app_list/test/app_list_test_view_delegate.cc
+++ b/ui/app_list/test/app_list_test_view_delegate.cc
@@ -52,12 +52,6 @@ SpeechUIModel* AppListTestViewDelegate::GetSpeechUI() {
   return &speech_ui_;
 }
 
-void AppListTestViewDelegate::GetShortcutPathForApp(
-    const std::string& app_id,
-    const base::Callback<void(const base::FilePath&)>& callback) {
-  callback.Run(base::FilePath());
-}
-
 void AppListTestViewDelegate::OpenSearchResult(SearchResult* result,
                                                bool auto_launch,
                                                int event_flags) {