A Local Administrator can remove OneDrive content for a user if the user has an Office 365 licence assigned to them.
Note: The following steps must be followed prior to marking a user as a leaver or transferring them to another organisation.
4. Select Delete OneDrive in the Actions box.
A message will be displayed to notify successful deletion
For more information on how to mark a user as a leaver, please refer to Marking a user as a leaver
For information on how to transfer a user mailbox to another organisation, please refer to Transferring a mailbox between organisations