Remove xdisplaycheck from the tree

ui/gl/BUILD.gn

 # 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.
 
 import("//build/buildflag_header.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//ui/ozone/ozone.gni")
 import("//testing/test.gni")
@@ skipping 393 matching lines @@
   ]
 }
 
 # Non-Ozone trybots end up trying to build this when building "all" and failing
 # when X11 isn't there.
 if (ozone_platform_x11) {
   group("gl_unittests_ozonex") {
     testonly = true
     data_deps = [
       ":gl_unittests",
-      "//tools/xdisplaycheck",
     ]
   }
 
   # TODO(GYP_GONE): Delete this after we've converted everything to GN.
   # The _run targets exist only for compatibility w/ GYP.
   group("gl_unittests_ozonex_run") {
     testonly = true
     deps = [
       ":gl_unittests_ozonex",
     ]
@@ skipping 10 matching lines @@
     sources = [
       "../android/java/src/org/chromium/ui/gl/SurfaceTextureListener.java",
       "../android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java",
     ]
     public_deps = [
       ":surface_jni_headers",
     ]
     jni_package = "ui/gl"
   }
 }