That’s baked into core, and would be difficult to filter out. You’re better off adding a new field specific for what your goal is. It’ll get stored as a text field, and can be used however you please. An example:
function ath_cleanup_profile_fields( $contactmethods ) {
$contactmethods['my_new_profile'] = 'Business Name';
return $contactmethods;
}
add_filter('user_contactmethods','ath_cleanup_profile_fields',10,1);