Bruce, here is a quote I found at RootsWeb:
"If you want to be sure that your tree will be included in the new OneWorldTree service, or if for any reason you do not want your tree to be part of OneWorldTree, please click here for more information. "
"Edit or Remove Family Trees Appearing In WorldConnect
[Return to top]
Family trees submitted to RootsWeb (WorldConnect) and Ancestry (Ancestry World Tree and Online Family Tree) were merged into one master database, which can be viewed from either site. You must use the tools at the original upload site to edit or remove any of the family trees appearing in the database. Click here for detailed instructions on how to modify or remove your family tree."
You may find these resources at this web page: http://helpdesk.rootsweb.com/announce.html