How to delete team dashboard in RTC
One answer
There's some information about this in How do I delete a project dashboard? It sounds like there used to be an option to restore project and team dashboards to their default settings, but that option was removed because some users were surprised to see that it removed their widgets and content. You can delete personal dashboards by clicking the X toolbar icon. There's no such toolbar icon in project area or team area dashboards.
Ken Tessier