which is the use of this function see that never recalled

function advuser_profile_value($fid, $uid) {
$ret = db_result(db_query("SELECT value FROM {profile_values} WHERE fid = %d and uid = %d", $fid, $uid));
if ($ret === FALSE) {
$ret = NULL;
}
return $ret;
}

This function I noticed that isn't never used inner the code.
So is a code not useful for the module?