diff --git a/sdk/include/opentelemetry/sdk/common/custom_hash_equality.h b/sdk/include/opentelemetry/sdk/common/custom_hash_equality.h
index d1b5555b..b529c92a 100644
--- a/sdk/include/opentelemetry/sdk/common/custom_hash_equality.h
+++ b/sdk/include/opentelemetry/sdk/common/custom_hash_equality.h
@@ -144,13 +144,7 @@ struct StringViewEqual
 template <typename MapType>
 inline auto find_heterogeneous(MapType &&map, opentelemetry::nostd::string_view key)
 {
-#if defined(_LIBCPP_VERSION) || \
-    (!defined(OPENTELEMETRY_STL_VERSION) || OPENTELEMETRY_STL_VERSION < 2020)
   return map.find(std::string(key));
-#else
-  // libstdc++ + C++20: heterogeneous lookup works
-  return map.find(key);
-#endif
 }
 }  // namespace common
 }  // namespace sdk