I'm primarily using Gnome Calendar (on Ubuntu 17.04). Some more complex Calendars cannot be set up in Gnome Calendar, so I installed Evolution, set up my calendars there and now they show up fine in Gnome Calendar as well.
My problem is, that I get all calendar notifications twice. Once from Evolution and once from Gnome Calendar. I only want the Gnome Calendar notifications.
How do I prevent Evolution from showing the notifications?