What does the define CONFIG_NRF_802154_TEMPERATURE_UPDATE do?

I started a project from an example and see that this constant is defined =n in the prj.conf. I am wondering what effect this define has? I can't find any definition with a Google search other than a description that mirrors the define. Is it something to do with calibrating the radio over temperature? If so, why wouldn't I want it defined as "y"?

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