This small module gives an extra feature to delete manually all revisions of a specific node prior a selected one.
Has no configuration settings, just enable
When you are deleting a revision of a node, a new checkbox will appear saying: "'Delete all X revisions as well prior this one.". If you check it all the prior revisions will be deleted as well for the given node.
Note: If you are deleting the oldest revision, the checkbox will not appear as no prior revisions are available.