Introduction
Hover your mouse pointer over the connection to delete. Then, click the trash can icon.
Instructions
1) Open Microsoft Remote Desktop from your Applications folder, Dock, or Launchpad.
2) Choose the connection that you wish to delete by hovering over it with your mouse pointer. Then, click the trash can icon.
3) Click Delete to confirm.
CAUTION: This cannot be undone.
Outcome
The connection has been deleted.