How to: Delete Work Item Queries
You can delete work item queries saved in the My Queries folder if you decide that you no longer need them.
To perform this procedure, you must be a member of the Readers group or have the View work items in this node permission set to Allow. To delete a team query, you must be a member of the Project Administrators group. For more information, see Team Foundation Server Permissions.
To delete work item queries
Open an existing team project.
Under Work Items, click My Queries.
Right-click the query you want to delete and then select Delete.
On the dialog box that states that the work item will be deleted permanently, click OK.