microsoft office 365 – Unable to remove “orphaned” Clutter folder from Outlook 365 App (Version 2105)

Clutter is a discontinued feature and the folder is now gone in Outlook web app, but on my installed version of Outlook the empty folder is still there with no apparently way to delete it. I tried using scanpst.exe on my .ost file, but the folder persists. Does anyone know how to remove it?