280 bytes added,
20:13, 6 August 2012 /* CSS placed here will be applied to all skins */
<!-- No [view history] tab for users who can not edit -->
<?php global $wgUser; if( !$wgUser->isAllowed('edit') ) { ?>
<style type="text/css">
#ca-history { display: none !important; }
</style>
<?php } ?>