I do not need a solution (just sharing information)
When preparing for a move of several mailboxes to another Exchange server, we've came accross a nice powershell command to quickly remove all EV-shortcuts from the mailbox to be moved.
http://eightwone.com/2013/05/16/removing-messages-by-message-class-from-mailbox/
Obviously, you can use the builtin 'delete shortcuts after X many days' function of EV, but this one might come in handy some day.