How to Get Rid of Dewey on a Record?

Hello,

Do y'all know how to get rid of Dewey on our book records?

I've had manual records that it auto-inserted and I really don't want it on my records. Nor LC Classification. Even when I deleted it and saved, it auto-added.

>1 TayoNaLibrary: The ones in green are not really part of your record, just suggested based on ISBN and other member records. I don't think you can avoid those short of putting something in that field, which would prevent a suggestion, same as with other data in green

But the work LoC still shows up in book details.