[Ozone] Removing Stub SFO implementation & CreateTestHelper from SFO

ui/aura/test/aura_test_helper.cc

Index: ui/aura/test/aura_test_helper.cc
diff --git a/ui/aura/test/aura_test_helper.cc b/ui/aura/test/aura_test_helper.cc
index dc03dede80428f0457a6ea50d431e5a49c4c8e6e..a101eda42fabe530a803efc6387dd25586fb63d9 100644
--- a/ui/aura/test/aura_test_helper.cc
+++ b/ui/aura/test/aura_test_helper.cc
@@ -30,10 +30,6 @@
 #include "ui/base/x/x11_util.h"
 #endif
 
-#if defined(USE_OZONE)
-#include "ui/gfx/ozone/surface_factory_ozone.h"
-#endif
-
 namespace aura {
 namespace test {
 
@@ -49,10 +45,6 @@ AuraTestHelper::AuraTestHelper(base::MessageLoopForUI* message_loop)
 #if defined(USE_X11)
   test::SetUseOverrideRedirectWindowByDefault(true);
 #endif
-#if defined(USE_OZONE)
-  surface_factory_.reset(gfx::SurfaceFactoryOzone::CreateTestHelper());
-  gfx::SurfaceFactoryOzone::SetInstance(surface_factory_.get());
-#endif
 }
 
 AuraTestHelper::~AuraTestHelper() {