Remove non-MD code for IME tray and tray menu.

ash/common/system/tray/tray_constants.h

 // Copyright (c) 2012 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 ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 #define ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 
 #include "ash/ash_export.h"
 
 typedef unsigned int SkColor;
@@ skipping 21 matching lines @@
 extern const int kTrayImageItemPadding;
 
 extern const int kTrayLabelItemHorizontalPaddingBottomAlignment;
 extern const int kTrayLabelItemVerticalPaddingVerticalAlignment;
 
 extern const int kTrayMenuBottomRowPadding;
 extern const int kTrayMenuBottomRowPaddingBetweenItems;
 
 // The minimum width of the tray menu.
 extern const int kTrayMenuMinimumWidth;
-extern const int kTrayMenuMinimumWidthMd;
 
 extern const int kTrayPopupAutoCloseDelayInSeconds;
 extern const int kTrayPopupAutoCloseDelayForTextInSeconds;
 extern const int kTrayPopupPaddingHorizontal;
 extern const int kTrayPopupPaddingBetweenItems;
 extern const int kTrayPopupButtonEndMargin;
 // The padding used on the left and right of labels. This applies to all labels
 // in the system menu.
 extern const int kTrayPopupLabelHorizontalPadding;
 
@@ skipping 96 matching lines @@
 extern const int kTrayPopupSystemInfoRowHeight;
 
 namespace test {
 const int kSettingsTrayItemViewId = 10000;
 const int kAccessibilityTrayItemViewId = 10001;
 }  // namespace test
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_