FaqIssueTrackingRemoveRepository
How do I edit or remove an Issue Tracking repository from NetBeans?
Starting with NetBeans 8.0, use the Tasks window. Bring up the context menu of the repository you wish to change or remove.
Prior to 8.0, go to main menu Window | Services and expand the Issue Trackers node in the services tab. Right click the node representing your repository and choose either Edit or Remove.