To delete an item(s) from your Nucleus navigation menu, begin by clicking on the 'Navigation' link in the Nucleus admin menu.
Now, select the checkboxes corresponding to the nav menu items you wish to delete.
Lastly, click the 'Delete Selected' link in the top-right corner of your navigation dashboard.
To confirm your deletion, select the 'Yes, delete' button in the deletion modal.
Voila! You've now successfully removed unwanted items from your Nucleus navigation menu.