c988da288ec473a28f61ebb53aa3ff82bab11ef4 "fdo#46808, Adapt
ui::dialogs::FolderPicker UNO service to new style" had left some FolderPicker
implementations at XFolderPicker, so creating them caused DeploymentExceptions.
Change-Id: I3463161f9bb87a69a2777c331eb5b93d487790b0