You will need to modify a Wordpress file for this.
It's wp-includes/widgets.php
Code:
/**
* Display meta widget.
*
* Displays log in/out, RSS feed links, etc.
*
* @since 2.2.0
*
* @param array $args Widget arguments.
*/
function wp_widget_meta($args) {
extract($args);
$options = get_option('widget_meta');
$title = empty($options['title']) ? __('Meta') : apply_filters('widget_title', $options['title']);
?>
<?php echo $before_widget; ?>
<?php echo $before_title . $title . $after_title; ?>
<ul>
<?php wp_register(); ?>
<li><?php wp_loginout(); ?></li>
<li><a href="<?php bloginfo('rss2_url'); ?>" title="<?php echo attribute_escape(__('Syndicate this site using RSS 2.0')); ?>"><?php _e('Entries <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
<li><a href="<?php bloginfo('comments_rss2_url'); ?>" title="<?php echo attribute_escape(__('The latest comments to all posts in RSS')); ?>"><?php _e('Comments <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
<li><a href="http://wordpress.org/" title="<?php echo attribute_escape(__('Powered by WordPress, state-of-the-art semantic personal publishing platform.')); ?>">WordPress.org</a></li>
<?php wp_meta(); ?>
</ul>
<?php echo $after_widget; ?>
<?php
}
Find the above bit (starts at line 839 on mine) and then delete those links you don't want from the opening <li>........to the closing</li> of that link.
I would save a copy of your original with another name just in case. Remember that upgrading Wordpress will overwrite these changes.
Or you do as Flynn suggested and remove the Meta widget completely and put the Login in the footer. Alternatively there are Wordpress plugins that substitute the meta widget e.g.:-
http://wordpress.org/extend/plugins/...e-meta-widget/
or
http://wordpress.org/extend/plugins/minimeta-widget/
I haven't tried any of these - check them out first.
Hope this helps.
Andy