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

ui/ozone/platform/drm/host/drm_native_display_delegate.cc

 // Copyright 2014 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 "ui/ozone/platform/drm/host/drm_native_display_delegate.h"
 
 #include <stdio.h>
 
 #include "base/logging.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 225 matching lines @@
   return std::vector<ColorCalibrationProfile>();
 }
 
 bool DrmNativeDisplayDelegate::SetColorCalibrationProfile(
     const DisplaySnapshot& output,
     ColorCalibrationProfile new_profile) {
   NOTIMPLEMENTED();
   return false;
 }
 
-bool DrmNativeDisplayDelegate::SetGammaRamp(
-    const ui::DisplaySnapshot& output,
-    const std::vector<GammaRampRGBEntry>& lut) {
-  proxy_->Send(new OzoneGpuMsg_SetGammaRamp(output.display_id(), lut));
-  return true;
-}
-
 void DrmNativeDisplayDelegate::AddObserver(NativeDisplayObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void DrmNativeDisplayDelegate::RemoveObserver(NativeDisplayObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void DrmNativeDisplayDelegate::OnDeviceEvent(const DeviceEvent& event) {
   if (event.device_type() != DeviceEvent::DISPLAY)
@@ skipping 183 matching lines @@
     set_hdcp_state_callback_map_.erase(it);
   }
 }
 
 void DrmNativeDisplayDelegate::RunUpdateDisplaysCallback(
     const GetDisplaysCallback& callback) const {
   callback.Run(displays_.get());
 }
 
 }  // namespace ui