Revert of chromeos: Convert ash VPNDelegate interface to mojo

ash/common/mojo_interface_factory.cc

Index: ash/common/mojo_interface_factory.cc
diff --git a/ash/common/mojo_interface_factory.cc b/ash/common/mojo_interface_factory.cc
index f8bab26711a577dd45cc822ecdf41ca7919cfeaf..1eef497a426e8ebbdc76d5527cf05a7d0d54961e 100644
--- a/ash/common/mojo_interface_factory.cc
+++ b/ash/common/mojo_interface_factory.cc
@@ -14,10 +14,6 @@
 #include "ash/common/wm_shell.h"
 #include "base/bind.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
-
-#if defined(OS_CHROMEOS)
-#include "ash/common/system/chromeos/network/vpn_list.h"
-#endif
 
 namespace ash {
 
@@ -42,12 +38,6 @@
   WmShell::Get()->system_tray_controller()->BindRequest(std::move(request));
 }
 
-#if defined(OS_CHROMEOS)
-void BindVpnListRequestOnMainThread(mojom::VpnListRequest request) {
-  WmShell::Get()->vpn_list()->BindRequest(std::move(request));
-}
-#endif
-
 void BindWallpaperRequestOnMainThread(
     mojom::WallpaperControllerRequest request) {
   WmShell::Get()->wallpaper_controller()->BindRequest(std::move(request));
@@ -69,10 +59,6 @@
                          main_thread_task_runner);
   registry->AddInterface(base::Bind(&BindSystemTrayRequestOnMainThread),
                          main_thread_task_runner);
-#if defined(OS_CHROMEOS)
-  registry->AddInterface(base::Bind(&BindVpnListRequestOnMainThread),
-                         main_thread_task_runner);
-#endif
   registry->AddInterface(base::Bind(&BindWallpaperRequestOnMainThread),
                          main_thread_task_runner);
 }