how can remove Email and Website in comments ((Wordpress))

admin

Administrator
Staff member
how can remove Email and Website section in Leave a Reply in Wordpress ?
Like this : <a href="http://sceper.eu/2011/10/manson-family-blood-on-the-wall-2011-cr.html" rel="nofollow">http://sceper.eu/2011/10/manson-family-blood-on-the-wall-2011-cr.html</a>
only see <strong>
Code:
Name (leave blank for Anonymous)
</strong> in Leave a Reply

and i'm use wordpress 3.2.1
and use the default Wordpress comments

(( public_html/wp-includes/comment.php

and

public_html/wp-includes/comment-template.php ))

I'm removed this code from omment-template.php

Code:
'email'  =&gt; '&lt;p class="comment-form-email"&gt;&lt;label for="email"&gt;' . __( 'Email' ) . '&lt;/label&gt; ' . ( $req ? '&lt;span class="required"&gt;*&lt;/span&gt;' : '' ) .
                    '&lt;input id="email" name="email" type="text" value="' . esc_attr(  $commenter['comment_author_email'] ) . '" size="30"' . $aria_req . ' /&gt;&lt;/p&gt;',
        'url'    =&gt; '&lt;p class="comment-form-url"&gt;&lt;label for="url"&gt;' . __( 'Website' ) . '&lt;/label&gt;' .
                    '&lt;input id="url" name="url" type="text" value="' . esc_attr( $commenter['comment_author_url'] ) . '" size="30" /&gt;&lt;/p&gt;',

But this is not work
i think remove only this code is not enough !

now what do i do ?