Revert of Force U.S. English keyboard layout for TextfieldTest.KeysWithModifiersTest

ui/events/test/keyboard_layout.cc

-// Copyright 2016 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.
-
-#include "ui/events/test/keyboard_layout.h"
-
-#include "base/logging.h"
-
-namespace ui {
-
-ScopedKeyboardLayout::ScopedKeyboardLayout(KeyboardLayout layout) {
-  original_layout_ = GetActiveLayout();
-  ActivateLayout(GetPlatformKeyboardLayout(layout));
-}
-
-ScopedKeyboardLayout::~ScopedKeyboardLayout() {
-  ActivateLayout(original_layout_);
-}
-
-#if !defined(OS_WIN) && !(defined(OS_MACOSX) && !defined(OS_IOS))
-PlatformKeyboardLayout ScopedKeyboardLayout::GetActiveLayout() {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
-void ScopedKeyboardLayout::ActivateLayout(PlatformKeyboardLayout layout) {
-  NOTIMPLEMENTED();
-}
-
-PlatformKeyboardLayout GetPlatformKeyboardLayout(KeyboardLayout layout) {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-#endif
-
-}  // namespace ui