Standard protocol for withdrawing published paper that has wrong (or erroneous) data (published without wrong intentions)
Not every published paper is right.  Publications are a snapshot of authors' understanding at a given time.  If they don't stand up to history, the literature corrects itself.    Descartes's publications on the pineal gland as the generator of motor actions have never been retracted!

If a paper is wrong because new data or new understanding has changed the authors' outlook, perhaps the best course of action is to publish a new paper, specifically discussing the previous paper.

If there is a real MISTAKE or MISREPRESENTATION in the original paper, the editor should probably be contacted about the possibility of publishing an ERRATUM.  Retraction should be reserved for the most severe of cases.