ash: Eliminate PointerWatcherDelegate

ash/shell/shell_delegate_impl.cc

Index: ash/shell/shell_delegate_impl.cc
diff --git a/ash/shell/shell_delegate_impl.cc b/ash/shell/shell_delegate_impl.cc
index 4eb1485422b5f6608892828ede00c40b7c4792cf..bf30aa3b01acea50f5bfd17108ac9c6673a244f3 100644
--- a/ash/shell/shell_delegate_impl.cc
+++ b/ash/shell/shell_delegate_impl.cc
@@ -16,7 +16,6 @@
 #include "ash/common/system/tray/default_system_tray_delegate.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/default_user_wallpaper_delegate.h"
-#include "ash/pointer_watcher_delegate_aura.h"
 #include "ash/shell.h"
 #include "ash/shell/context_menu.h"
 #include "ash/shell/example_factory.h"
@@ -257,11 +256,6 @@ std::unique_ptr<PaletteDelegate> ShellDelegateImpl::CreatePaletteDelegate() {
   return base::MakeUnique<PaletteDelegateImpl>();
 }
 
-std::unique_ptr<ash::PointerWatcherDelegate>
-ShellDelegateImpl::CreatePointerWatcherDelegate() {
-  return base::WrapUnique(new PointerWatcherDelegateAura);
-}
-
 ui::MenuModel* ShellDelegateImpl::CreateContextMenu(WmShelf* wm_shelf,
                                                     const ShelfItem* item) {
   return new ContextMenu(wm_shelf);