Add More Contact Fields to WordPress User Profile

I found this information here.

To add more contact information to a WordPress user such as the user’s LinkedIn username add the following code to your functions.php file:

add_filter('user_contactmethods', 'my_user_contactmethods');  
               
function my_user_contactmethods($user_contactmethods){  
  
  $user_contactmethods['linkedin'] = 'Linked In username';  
  $user_contactmethods['phone'] = 'Phone';
  
  return $user_contactmethods;  
}  

This gives me this in my user profile:

To remove fields from the user profile:

add_filter('user_contactmethods', 'my_user_contactmethods');  
               
function my_user_contactmethods($user_contactmethods){  
  
  unset($user_contactmethods['yim']);  
  unset($user_contactmethods['aim']);  
  unset($user_contactmethods['jabber']);  
    
  $user_contactmethods['linkedin'] = 'Linked In username';  
  $user_contactmethods['phone'] = 'Phone';
  
  return $user_contactmethods;  
}  

This gives me this in my user profile: