From the CA documentation you can only delete a page, from the Staging area.
However I do not want to delete a page (eg. API documentation page), I want to keep it in the staging area and remove it from the Published area. Basically revert the "Publish page" action.
If I unpublish the corresponding page or the folder in the CMS (eg. / sitebuilder/ pages/ documentation/ rest-service-1) it still shows in the left navigation and the page is rendered anyway.
Thanks for your help.