Cleaning up? Here’s how:
Right-click the friend and select Delete. That’s it!
The contact will not be notified that you deleted them from your list.

Also, if you no longer want to receive messages from this person:

1. Click the down-arrow in the upper-right corner to open the menu and click Preferences.
2. On the left, click Ignore List.
3. Click Add, and enter the person’s ID.
4. Click Go. All done. You can have a change of heart, too! Go back and remove the contact from your Ignore List anytime.