Wiki Page Edit History
There is a "Remove" action in the History of each page, but really that is just selecting and deleting the revisions.
I am not a dev, but in using software from other applications, there is typically a "Rebuild" action to take, when and if you decide to activate the "Prune" feature. So if you have 200 revisions for a wiki page and you decide you want to turn on the prune feature, you can set it to store 15 revisions, or prune content older than (days), once you configure it to where you want it, you click on a button "Rebuild" and it goes back to all the revisions and prunes per the settings. This could take seconds or it could take minutes, or even hours depending on the amount of wiki pages in the database.
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