How to detect unused code

I’ve been using the Asset Cleanup plugin to unload code on different web pages and it has been great. However, there is a lot of code showing up in Asset Cleanup and I don’t know whether it is being used or not (and I’m not a developer and do not know how to use the Google Dev tools to figure it out). Does anyone know if there is a plugin or program that I can use to identify the code in Asset Cleanup that is NOT being used, so that I can unload it in Asset Cleanup?

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