This feature is live now — here are the steps to remove people:
1. Go to the “address book” option inside the “people” tab in the top tab navigation.
2. In the address book page, you will see a “check box” on the left hand side of the players.
3. Check off the players you want to remove and scroll to the bottom of the page click the button “delete checked address book members”
4. After submission, you will notice those people are gone from your address book.
FYI, it also means they will be gone from address book letters on the “dashboard” and also the listing in the “add/edit players” page.