User has hundreds of shared calendars in Outlook Online. How can I remove them en mass?

[souperdv]

I have a user who just changed roles, and the hundreds of calendars she's added to her Online Outlook are no longer needed.  Is there a powershell command I could use to disconnect all of these from her Outlook instead of manually removing each one?  There are probably 500+.

[#2]

The easiest way to clean this up is to create a fresh new Outlook profile and add the needed calendars back.