Removes code using mus client lib

ui/views/test/views_test_base.cc

 // Copyright (c) 2012 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/test/views_test_base.h"
 
 #include <utility>
 
 #include "base/environment.h"
 #include "base/run_loop.h"
@@ skipping 46 matching lines @@
       << "You have overridden SetUp but never called super class's SetUp";
   CHECK(teardown_called_)
       << "You have overridden TearDown but never called super class's TearDown";
 }
 
 // static
 bool ViewsTestBase::IsMus() {
   return PlatformTestHelper::IsMus();
 }
 
-// static
-bool ViewsTestBase::IsAuraMusClient() {
-  return PlatformTestHelper::IsAuraMusClient();
-}
-
 void ViewsTestBase::SetUp() {
   testing::Test::SetUp();
   // ContentTestSuiteBase might have already initialized
   // MaterialDesignController in unit_tests suite.
   ui::test::MaterialDesignControllerTestAPI::Uninitialize();
   ui::MaterialDesignController::Initialize();
   setup_called_ = true;
   if (!views_delegate_for_setup_)
     views_delegate_for_setup_.reset(new TestViewsDelegate());
 
@@ skipping 30 matching lines @@
 
 void ViewsTestBase::SimulateNativeDestroy(Widget* widget) {
   test_helper_->platform_test_helper()->SimulateNativeDestroy(widget);
 }
 
 gfx::NativeWindow ViewsTestBase::GetContext() {
   return test_helper_->GetContext();
 }
 
 }  // namespace views