Remove more dead app list code.

ui/app_list/views/app_list_view.h

Index: ui/app_list/views/app_list_view.h
diff --git a/ui/app_list/views/app_list_view.h b/ui/app_list/views/app_list_view.h
index 79168c26edfe7d7975b25aefb96c5a068323892c..fb3b061ebef8785d33a8e979000d097a1cbf251c 100644
--- a/ui/app_list/views/app_list_view.h
+++ b/ui/app_list/views/app_list_view.h
@@ -15,10 +15,6 @@
 #include "ui/views/bubble/bubble_dialog_delegate.h"
 #include "ui/views/widget/widget.h"
 
-namespace base {
-class FilePath;
-}
-
 namespace app_list {
 class ApplicationDragAndDropHost;
 class AppListMainView;
@@ -80,8 +76,6 @@ class APP_LIST_EXPORT AppListView : public views::BubbleDialogDelegateView,
       gfx::NativeView child,
       const gfx::Point& location) override;
 
-  void SetProfileByPath(const base::FilePath& profile_path);
-
   AppListMainView* app_list_main_view() { return app_list_main_view_; }
 
   // Gets the PaginationModel owned by this view's apps grid.