C:project>tfsdeleteproject /collection:https://buckh-test2.visualstudio.com/DefaultCollection Testing Warning: Deleting a team project is an irrecoverable operation. All version control, work item tracking and Team Foundation build data will be destroyed from the system. The only way to recover this data is by restoring a stored backup of the databases. Are you sure you want to delete the team project and all of its data (Y/N)?y Deleting from Build ... Done Deleting from Version Control ... Done Deleting from Work Item Tracking ... Done Deleting from TestManagement ... Done Deleting from LabManagement ... Done Deleting from ProjectServer ... Done Warning. Did not find Report Server service. Warning. Did not find SharePoint site service. Deleting from Team Foundation Core ... Done
http://blogs.msdn.com/b/buckh/archive/2011/09/19/how-to-delete-a-team-project-from-tfs-on-azure.aspx