How do you remove or hide the 'Permalink' in comments?
Copy the default comment comment.tpl.php into your theme directory:

cp /your_drupal_path/modules/comment/comment.tpl.php /your_drupal_path/sites/all/themes/mytheme/comment.tpl.php


Search and change the following lines into your theme's path comment.tpl.php:

From:

&lt;div class="submitted"&gt;
&lt;?php print $permalink; ?&gt;
&lt;?php print $submitted; ?&gt;
&lt;/div&gt;


To:

&lt;div class="submitted"&gt;
&lt;!-- Do not show Permalink on comments -- it will still have a link on the comment title
&lt;?php print $permalink; ?&gt; --&gt;
&lt;?php print $submitted; ?&gt;
&lt;/div&gt;


This will do the magic!