[Android] Simplify logic for grabbing initial country-code.

components/omnibox/autocomplete_result_unittest.cc

Index: components/omnibox/autocomplete_result_unittest.cc
diff --git a/components/omnibox/autocomplete_result_unittest.cc b/components/omnibox/autocomplete_result_unittest.cc
index 46928497a5d62e4d87f549464995916fa418bfe6..2d68d80134a8e8bfc29849ad57798ce44bc86fde 100644
--- a/components/omnibox/autocomplete_result_unittest.cc
+++ b/components/omnibox/autocomplete_result_unittest.cc
@@ -90,10 +90,6 @@ class AutocompleteResultTest : public testing::Test  {
   }
 
   virtual void SetUp() override {
-#if defined(OS_ANDROID)
-    TemplateURLPrepopulateData::InitCountryCode(
-        std::string() /* unknown country code */);
-#endif
     template_url_service_.reset(new TemplateURLService(NULL, 0));
     template_url_service_->Load();
   }