Revert of Resurrect Aura Linux accessibility.

ui/accessibility/BUILD.gn

Index: ui/accessibility/BUILD.gn
diff --git a/ui/accessibility/BUILD.gn b/ui/accessibility/BUILD.gn
index 7ac325ec0bd0ce4a2878129569e88bd2173f0a3d..d168b5e25a94f06b501695f452d13eae5ec9116b 100644
--- a/ui/accessibility/BUILD.gn
+++ b/ui/accessibility/BUILD.gn
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/config/ui.gni")
 import("//build/json_schema_api.gni")
 import("//testing/test.gni")
 
@@ -47,22 +46,6 @@
 
   if (is_win) {
     public_deps += [ "//third_party/iaccessible2" ]
-  }
-
-  if (use_aura && !is_chromeos && is_linux) {
-    sources += [
-      "platform/atk_util_auralinux.cc",
-      "platform/atk_util_auralinux.h",
-      "platform/ax_platform_node_auralinux.cc",
-      "platform/ax_platform_node_auralinux.h",
-    ]
-
-    configs += [
-      "//build/config/linux:atk",
-      "//build/config/linux:atk_warnings",
-      "//build/config/linux:gconf",
-      "//build/config/linux:glib",
-    ]
   }
 }