How can you delete or unsuscribe from a secondary calendar using Calendar web interface.
- Google Calendar web interface
- On your computer, open Google Calendar.
- From the top right, click Settings > Settings.
- In the left column, find the calendar you want to delete.
- Click the name of the calendar.
- Click Remove calendar > Delete > Delete permanently.
This action can not be undone.
You don't need a calendar anymore, you can permanently delete it or unsubscribe from it