chromeos: Fix crash when clicking on networking menu under mash

ash/test/ash_test_helper.cc

Index: ash/test/ash_test_helper.cc
diff --git a/ash/test/ash_test_helper.cc b/ash/test/ash_test_helper.cc
index 0affe9d9fc12539c0c3d8db6c97c9151237e502d..d6911f5c0e3043e15420f3ca5e904ca61e74bf12 100644
--- a/ash/test/ash_test_helper.cc
+++ b/ash/test/ash_test_helper.cc
@@ -354,10 +354,6 @@ void AshTestHelper::CreateMashWindowManager() {
     int next_x = 0;
     CreateRootWindowController("800x600", &next_x);
   }
-
-  // Make sure the NetworkHandler didn't get turned on, see above comment as to
-  // why the NetworkHandler should not be running.
-  CHECK(!chromeos::NetworkHandler::IsInitialized());
 }
 
 void AshTestHelper::CreateShell() {