It is time.

ui/display/BUILD.gn

Index: ui/display/BUILD.gn
diff --git a/ui/display/BUILD.gn b/ui/display/BUILD.gn
index d8d8c7c0de8dc4793c26ab413a412b704d123914..722841a6a6a50c0c675243fabffcd36e196d1b33 100644
--- a/ui/display/BUILD.gn
+++ b/ui/display/BUILD.gn
@@ -8,7 +8,6 @@ component("display") {
   sources = [
     "chromeos/display_configurator.cc",
     "chromeos/display_configurator.h",
-    "chromeos/ozone/display_configurator_ozone.cc",
     "chromeos/x11/display_configurator_x11.cc",
     "chromeos/x11/display_mode_x11.cc",
     "chromeos/x11/display_mode_x11.h",
@@ -42,31 +41,11 @@ component("display") {
       "//build/config/linux:xrandr",
     ]
     deps += [ "//ui/events/platform" ]
-    if (is_chromeos) {
-      sources -= [ "chromeos/ozone/display_configurator_ozone.cc" ]
-    }
   }
 
   if (is_chromeos) {
     deps += [ "//ui/display/types" ]
   }
-
-  if (use_ozone) {
-    deps += [ "//ui/ozone" ]
-    sources -= [
-      "chromeos/x11/display_configurator_x11.cc",
-      "chromeos/x11/display_mode_x11.cc",
-      "chromeos/x11/display_mode_x11.h",
-      "chromeos/x11/display_snapshot_x11.cc",
-      "chromeos/x11/display_snapshot_x11.h",
-      "chromeos/x11/display_util_x11.cc",
-      "chromeos/x11/display_util_x11.h",
-      "chromeos/x11/native_display_delegate_x11.cc",
-      "chromeos/x11/native_display_delegate_x11.h",
-      "chromeos/x11/native_display_event_dispatcher_x11.cc",
-      "chromeos/x11/native_display_event_dispatcher_x11.h",
-    ]
-  }
 }
 
 component("test_util") {