Revert "chromeos: Move files in //ash/common to //ash, part 2"

ash/shelf/wm_shelf_util.cc

Index: ash/shelf/wm_shelf_util.cc
diff --git a/ash/shelf/wm_shelf_util.cc b/ash/shelf/wm_shelf_util.cc
deleted file mode 100644
index 41934c56504dc3be02c5dbf007a86c57174d2c00..0000000000000000000000000000000000000000
--- a/ash/shelf/wm_shelf_util.cc
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2016 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 "ash/shelf/wm_shelf_util.h"
-
-namespace ash {
-
-bool IsHorizontalAlignment(ShelfAlignment alignment) {
-  return alignment == SHELF_ALIGNMENT_BOTTOM ||
-         alignment == SHELF_ALIGNMENT_BOTTOM_LOCKED;
-}
-
-}  // namespace ash