[Sync] Move the last things out of core/.

components/sync/core/activation_context.cc

Index: components/sync/core/activation_context.cc
diff --git a/components/sync/core/activation_context.cc b/components/sync/core/activation_context.cc
deleted file mode 100644
index 38e0c9d1a10a977393a3b891f165c09b9592b78e..0000000000000000000000000000000000000000
--- a/components/sync/core/activation_context.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/sync/core/activation_context.h"
-
-namespace syncer {
-
-ActivationContext::ActivationContext() {}
-
-ActivationContext::~ActivationContext() {}
-
-}  // namespace syncer