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

ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc

Index: ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc b/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc
index 8a25418e6e50c4b20ee5821329fbd04290fca367..1214d7d0c199566945fe139f4e2ebbbc0910ab61 100644
--- a/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc
+++ b/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.cc
@@ -9,7 +9,6 @@
 #include "base/file_descriptor_posix.h"
 #include "base/files/file.h"
 #include "base/single_thread_task_runner.h"
-#include "ui/display/types/gamma_ramp_rgb_entry.h"
 #include "ui/display/types/native_display_observer.h"
 #include "ui/events/ozone/device/device_event.h"
 #include "ui/ozone/common/display_util.h"
@@ -193,21 +192,6 @@
   return true;
 }
 
-void DrmGpuDisplayManager::SetGammaRamp(
-    int64_t id,
-    const std::vector<GammaRampRGBEntry>& lut) {
-  DrmDisplaySnapshot* display = FindDisplaySnapshot(id);
-  if (!display) {
-    LOG(ERROR) << "There is no display with ID " << id;
-    return;
-  }
-
-  if (!display->drm()->SetGammaRamp(display->crtc(), lut)) {
-    LOG(ERROR) << "Failed to set gamma ramp for display: crtc_id = "
-               << display->crtc() << " size = " << lut.size();
-  }
-}
-
 DrmDisplaySnapshot* DrmGpuDisplayManager::FindDisplaySnapshot(int64_t id) {
   for (size_t i = 0; i < cached_displays_.size(); ++i)
     if (cached_displays_[i]->display_id() == id)