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Would it bad, if we have a page, and then suddenly page is removed. There can be lots of Page Not Found. Although Google probably will deindex it after knowing there is no page linking to it anymore?

I have a real estate agent property website. What should I do with the sold property page. Should I remove the page entirely since the page has no more use for user. Currently the page is still exist, but only with word "This property is currently not available/sold"