If you created a practice site that you no longer want, you can delete it. Perform the following steps to delete a practice site:
OPEN the SharePoint site that you wish to delete. If prompted, type your user name and password, and click OK.
BE SURE TO verify that you have sufficient rights to delete a site. If in doubt, see the Appendix.
On the Site Actions menu, click Site Settings to display the Site Settings page.
In the Site Administration section, click Delete this site to display the Delete This Site confirmation page.
Click the Delete button to delete the site.