Scheduling and managing events using Outlook.com calendar
Hi there,
I'm an Independent Advisor here to help you out,
I also have wondered the same thing, and searched for a way to remove them. Unfortunately there isn't a way to remove them at the moment.
There is however a feedback item opened on the Outlook uservoice where other people have voted for and expressed the exact same sort of dissatisfaction as you did - the best thing for you to do at the moment would be to upvote this suggestion here - https://outlook.uservoice.com/forums/284136-out...
I have also done the same, hopefully it will get some traction. It's the best way to get your feedback and comments heard by the development team.
I wish I could give you what you were looking for, but I hope this explains it a little more!
Thanks,
Nick