If you’ve recently booked a hotel, a flight or some other things like restaurant reservations or concert tickets, you may have noticed corresponding events in your Google Calendar.
For many of us, these are helpful reminders, which is why Google does it by default.
What if you use something like TripIt to manage your travels? You may want to disable auto importing events from your Google (aka Gmail or G Suite) Mail.
Now events will not be added automatically. If you decide you miss this functionality, just go back to the same spot and check the box.
It probably goes without saying, but if you generally like this feature, but need to remove a specific event, you can click on the event and then delete it by clicking the trash can.