This is a quick wordpress tip. If you are hosting your wordpress on a server and want to Remove the unnecessary links from WordPress sidebar such as Entire RSS, Commments RSS then follow this steps.

Go to to your wordpress includes folder and and find widgets.php, it should be at the end

Open it in any text editor (notepad ++ , smultron) and do a quick search by pressing CMD/WIN + F. This will bring up the find options. The meta block code starts from line 847.

The code will look like this

<?php wp_register(); ?>
<?php wp_loginout(); ?>
<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>
<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>
<a href="http://wordpress.org/" title="<?php echo attribute_escape(__('Powered by WordPress, state-of-the-art semantic personal publishing platform.')); ?>">WordPress.org</a>

Leave these two line and remove whatever you don’t need such as RSS, Comments and WordPress

<?php wp_register(); ?>

<?php wp_loginout(); ?>

That all. Hope this was helpful!

Update: For the latest version, open up the file default-widgets.php go to line 295 to find the snippet.