Revert of Replicate to all renderers the accepted languages set by a layout test.

components/test_runner/tracked_dictionary.cc

Index: components/test_runner/tracked_dictionary.cc
diff --git a/components/test_runner/tracked_dictionary.cc b/components/test_runner/tracked_dictionary.cc
index 5b78ea0feabdd4e7867a2f22491a1355e2f9a7c8..890553afcbfd25891ed42930598fd58956e38256 100644
--- a/components/test_runner/tracked_dictionary.cc
+++ b/components/test_runner/tracked_dictionary.cc
@@ -41,9 +41,4 @@
   Set(path, make_scoped_ptr(new base::FundamentalValue(new_value)));
 }
 
-void TrackedDictionary::SetString(const std::string& path,
-                                  const std::string& new_value) {
-  Set(path, make_scoped_ptr(new base::StringValue(new_value)));
-}
-
 }  // namespace test_runner