descatalogar

To discontinue a product or remove a work from a catalog — descatalogar un modelo de coche, descatalogar un libro agotado. Common in retail, publishing, and manufacturing contexts describing something no longer being produced or sold.

• La marca descatalogó ese modelo hace dos años. — The brand discontinued that model two years ago.
• El libro fue descatalogado por la editorial. — The book was discontinued by the publisher.
• Buscan piezas de un coche ya descatalogado. — They're looking for parts for a car that's already been discontinued.

It specifically means removing from a catalog or product line — for a book going out of print in the sense of 'no more copies exist,' agotado is often the more natural word.