Remove login and registration links

in the page-header.tpl delete lines 43-51

<?php
if (user_is_logged_in()) :
?>
• <?php
print t('Hello');
?>
  <?php
print l($GLOBALS['user']->name, 'user')
?>
• <?php
print l('Logout', 'logout')
?>
<?php
else :
?>
• Hello Visitor!
• <?php
print l('Log In', 'user')
?>
  or
  <?php
print l('Register','user/register')
?>
<?php
endif;
?>

or in components.css?Line 101 use display:none;