diff --git a/libs/androidfw/tests/CommonHelpers.h b/libs/androidfw/tests/CommonHelpers.h
index c160fbba4c018..8af13f20fb0dc 100644
--- a/libs/androidfw/tests/CommonHelpers.h
+++ b/libs/androidfw/tests/CommonHelpers.h
@@ -44,10 +44,6 @@ static inline ::std::ostream& operator<<(::std::ostream& out, const String8& str
   return out << str.string();
 }
 
-static inline ::std::ostream& operator<<(::std::ostream& out, const String16& str) {
-  return out << String8(str).string();
-}
-
 static inline ::std::ostream& operator<<(::std::ostream& out, const ResTable_config& c) {
   return out << c.toString();
 }