Cleanup Ash Metro mode.

ash/test/test_suite.cc

Index: ash/test/test_suite.cc
diff --git a/ash/test/test_suite.cc b/ash/test/test_suite.cc
index 33dedc1bace134da4757824a4e117b7b5b2bb2be..a7437149adb089d01e0651f7a563515deb39322a 100644
--- a/ash/test/test_suite.cc
+++ b/ash/test/test_suite.cc
@@ -39,9 +39,7 @@ void AuraShellTestSuite::Initialize() {
   base::win::Version version = base::win::GetVersion();
   // Although Ash officially is only supported for users on Win7+, we still run

[sky, 2016/09/08 23:45:36]

Nuke this comment and always create com_initializer_ as vista is the minimum
now.

[rjkroege, 2016/09/09 00:04:21]

Done.

   // ash_unittests on Vista builders, so we still need to initialize COM.
-  if (version >= base::win::VERSION_VISTA &&
-      !base::CommandLine::ForCurrentProcess()->HasSwitch(
-          ash::switches::kForceAshToDesktop)) {
+  if (version >= base::win::VERSION_VISTA) {
     com_initializer_.reset(new base::win::ScopedCOMInitializer());
     ui::win::CreateATLModuleIfNeeded();
   }