Revert of Bring up of the enhanced bookmarks cluster service.

components/enhanced_bookmarks/pref_names.cc

Index: components/enhanced_bookmarks/pref_names.cc
diff --git a/components/enhanced_bookmarks/pref_names.cc b/components/enhanced_bookmarks/pref_names.cc
deleted file mode 100644
index 6eb07778fecfd490d34dca8ce8fdbd533be218c3..0000000000000000000000000000000000000000
--- a/components/enhanced_bookmarks/pref_names.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2014 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/enhanced_bookmarks/pref_names.h"
-
-namespace enhanced_bookmarks {
-namespace prefs {
-
-const char kBookmarkClusters[] =
-    "enhanced_bookmarks_component.bookmark_clusters";
-}  // namespace prefs
-}  // namespace enhanced_bookmarks