chromeos: Remove --ash-enable-brightness-control flag.

ash/ash_switches.cc

 // 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.
 
 #include "ash/ash_switches.h"
 
 #include "base/command_line.h"
 
 namespace ash {
 namespace switches {
@@ skipping 39 matching lines @@
 // Disable ability to dock windows at the desktop edge.
 const char kAshDisableDockedWindows[] = "ash-disable-docked-windows";
 
 // Use alternate visual style for the caption buttons (minimize, maximize,
 // restore, close). The alternate style:
 // - Adds a dedicated button for minimize.
 // - Removes the maximize button's help bubble.
 const char kAshEnableAlternateFrameCaptionButtonStyle[] =
     "ash-enable-alternate-caption-button";
 
-// Always enable brightness control. Used by machines that don't report their
-// main monitor as internal.
-const char kAshEnableBrightnessControl[] = "ash-enable-brightness-control";
-
 #if defined(OS_CHROMEOS)
 // Enables key bindings to scroll magnified screen.
 const char kAshEnableMagnifierKeyScroller[] =
     "ash-enable-magnifier-key-scroller";
 #endif
 
 // Enables software based mirroring.
 const char kAshEnableSoftwareMirroring[] = "ash-enable-software-mirroring";
 
 // Enables touch view testing.
@@ skipping 66 matching lines @@
   return !CommandLine::ForCurrentProcess()->
       HasSwitch(kAshDisableAlternateShelfLayout);
 }
 
 bool UseDockedWindows() {
   return !CommandLine::ForCurrentProcess()->HasSwitch(kAshDisableDockedWindows);
 }
 
 }  // namespace switches
 }  // namespace ash