If I remove the API from a third-party library, does it not require Privacy Manifest??

Suppose I received a Privacy Manifest from Apple in the process of reviewing the app.

I used "UserDefaults" and "File timestamp APIs" among the APIs, and I didn't add Privacymanifest. And there is nothing in the mail other than "UserDefaults" and "File timestamp APIs".

And so is the code.

If I remove all the code related to "UserDefaults" and "File timestamp APIs" from the library in this situation, is it okay not to add "Privacy Manifest" from the library as well??

The library can be FrameWork or Static Library.