Remove most obvious TOUCH_UI code

ui/views/widget/widget.cc

 // Copyright (c) 2011 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/views/widget/widget.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "ui/base/hit_test.h"
@@ skipping 205 matching lines @@
   return widget;
 }
 
 // static
 void Widget::SetPureViews(bool pure) {
   use_pure_views = pure;
 }
 
 // static
 bool Widget::IsPureViews() {
-#if defined(USE_AURA) || defined(TOUCH_UI)
+#if defined(USE_AURA)
   return true;
 #else
   return use_pure_views;
 #endif
 }
 
 // static
 Widget* Widget::GetWidgetForNativeView(gfx::NativeView native_view) {
   internal::NativeWidgetPrivate* native_widget =
       internal::NativeWidgetPrivate::GetNativeWidgetForNativeView(native_view);
@@ skipping 961 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views