Mojo: more idiomatic C++ bindings

mojo/shell/dbus_service_loader_linux.cc

Index: mojo/shell/dbus_service_loader_linux.cc
diff --git a/mojo/shell/dbus_service_loader_linux.cc b/mojo/shell/dbus_service_loader_linux.cc
index f2ecbcf26a6c6ce0e0bb69bbced0bb8d4f32fb3d..4bbf96dfc1c52ef2dae0f40a785afedc4633e9dd 100644
--- a/mojo/shell/dbus_service_loader_linux.cc
+++ b/mojo/shell/dbus_service_loader_linux.cc
@@ -19,7 +19,6 @@
 #include "mojo/common/channel_init.h"
 #include "mojo/dbus/dbus_external_service.h"
 #include "mojo/embedder/platform_channel_pair.h"
-#include "mojo/public/cpp/bindings/allocation_scope.h"
 #include "mojo/shell/context.h"
 #include "mojo/shell/external_service.mojom.h"
 #include "mojo/shell/keep_alive.h"
@@ -105,7 +104,6 @@ class DBusServiceLoader::LoadContext {
   // Sends a ShellHandle over to the now-connected externally-running service,
   // using the Mojo ExternalService API.
   void ActivateService(dbus::Response* response) {
-    mojo::AllocationScope scope;
     external_service_->Activate(
         mojo::ScopedMessagePipeHandle(
             mojo::MessagePipeHandle(shell_handle_.release().value())));