Revert of Load and apply a vcgt table from an ICC file to the internal display

ui/display/chromeos/display_configurator.h

Index: ui/display/chromeos/display_configurator.h
diff --git a/ui/display/chromeos/display_configurator.h b/ui/display/chromeos/display_configurator.h
index 96f93eccae994c35e26f7104df0c8de9a9bd6ba7..3dc87f43603cb6a9220e4f26e49e56d3faf7cde4 100644
--- a/ui/display/chromeos/display_configurator.h
+++ b/ui/display/chromeos/display_configurator.h
@@ -30,8 +30,6 @@
 }
 
 namespace ui {
-struct DisplayConfigureRequest;
-struct GammaRampRGBEntry;
 class DisplayLayoutManager;
 class DisplayMode;
 class DisplaySnapshot;
@@ -261,10 +259,6 @@
   // Updates the color calibration to |new_profile|.
   bool SetColorCalibrationProfile(int64_t display_id,
                                   ui::ColorCalibrationProfile new_profile);
-
-  // Sets the gamma ramp for |display_id| to the values in |lut|.
-  bool SetGammaRamp(int64_t display_id,
-                    const std::vector<GammaRampRGBEntry>& lut);
 
  private:
   class DisplayLayoutManagerImpl;