Following the release of WordPress 2.9, we share with you an article that shows you how to add fields like Twitter and Facebook to the author profile page. In this article, we'll show you how you can remove unwanted default author profile fields to make the WordPress admin panel more user-friendly for your customers.
As you can see, we don't want to keep AIM, Yahoo IM and Jabber/Gtalk. If you are dealing with very new level clients then you don't want them to see this. It will only complicate things for them. To remove these default fields, simply open the functions.php theme File and add the following code:
This will remove contact methods like AIM, Jabber, and Yahoo IM. Now, if you want to add fields, you should check out our article on adding author profile fields in WordPress.
Source:Strangework by Brad Williams