To remove unused components, right-click on the project or job in the navigation pane to open the context menu. From there, select Remove unused components.
A confirmation dialog appears next, showing how many components are unused. Here you have options to delete or cancel the action.
To see the specific components that have been identified for removal, click on Show items list. For example, the following items have been identified as unused in the sampleBiker project:
Note: as the dialog warns, the deletion cannot be undone.