Revert of Resurrect Aura Linux accessibility.

ui/views/accessibility/native_view_accessibility_auralinux.h

Index: ui/views/accessibility/native_view_accessibility_auralinux.h
diff --git a/ui/views/accessibility/native_view_accessibility_auralinux.h b/ui/views/accessibility/native_view_accessibility_auralinux.h
deleted file mode 100644
index f817dc78e1d6f5c53654411c114d278538576a75..0000000000000000000000000000000000000000
--- a/ui/views/accessibility/native_view_accessibility_auralinux.h
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2015 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.
-
-#ifndef UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_AURALINUX_H_
-#define UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_AURALINUX_H_
-
-#include "ui/views/accessibility/native_view_accessibility.h"
-#include "ui/views/view.h"
-
-namespace views {
-
-class NativeViewAccessibilityAuraLinux : public NativeViewAccessibility {
- public:
-  NativeViewAccessibilityAuraLinux(View* view);
-  ~NativeViewAccessibilityAuraLinux() override;
-
-  // NativeViewAccessibility.
-  gfx::NativeViewAccessible GetParent() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(NativeViewAccessibilityAuraLinux);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_AURALINUX_H_