views: Remove dead code.

ui/views/mus/display_converter.h

Index: ui/views/mus/display_converter.h
diff --git a/ui/views/mus/display_converter.h b/ui/views/mus/display_converter.h
deleted file mode 100644
index 74de33d54003edb6539610607a8b3eae50d1572f..0000000000000000000000000000000000000000
--- a/ui/views/mus/display_converter.h
+++ /dev/null
@@ -1,24 +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.
-
-#ifndef UI_VIEWS_MUS_DISPLAY_CONVERTER_H_
-#define UI_VIEWS_MUS_DISPLAY_CONVERTER_H_
-
-#include <vector>
-
-#include "ui/display/display.h"
-#include "ui/views/mus/mus_export.h"
-
-namespace mus {
-class Window;
-}
-
-namespace views {
-
-std::vector<display::Display> VIEWS_MUS_EXPORT
-GetDisplaysFromWindow(mus::Window* window);
-
-}  // namespace views
-
-#endif  // UI_VIEWS_MUS_DISPLAY_CONVERTER_H_