How to hide featured image in Post

I'm using this WP theme wparchive at .com /renegate/ and I want to hide the featured image from showing in the post. You have to set featured images to show in the slide show at top, but I don't want them in my post. Just show at top. Any way to do this? I know I'll have to edit the theme, but have no idea what to change.

 

If you are providing your single.php,content.php then I can check... thanks..

 

I guess you asking for me to post this?

<?php get_header(); ?>
<div class="span-24" id="contentwrap">
<?php get_sidebars('left'); ?>
<div class="span-14">
<div id="content">
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div <?php post_class() ?> id="post-<?php the_ID(); ?>">
<h2 class="title"><?php the_title(); ?></h2>
<div class="postdate"><img src="<?php bloginfo('template_url'); ?>/images/date.png" /> <?php the_time('F jS, Y') ?> <img src="<?php bloginfo('template_url'); ?>/images/user.png" /> <?php the_author() ?> <?php if (current_user_can('edit_post', $post->ID)) { ?> <img src="<?php bloginfo('template_url'); ?>/images/edit.png" /> <?php edit_post_link('Edit', '', ''); } ?></div>

<div class="entry">
<?php if ( function_exists("has_post_thumbnail") && has_post_thumbnail() ) { the_post_thumbnail(array(300,225), array("class" => "alignleft post_thumbnail")); } ?>
<?php the_content('Read the rest of this entry &raquo;'); ?>
<?php wp_link_pages(array('before' => '<p><strong>Pages:</strong> ', 'after' => '</p>', 'next_or_number' => 'number')); ?>
</div>
<div class="postmeta"><img src="<?php bloginfo('template_url'); ?>/images/folder.png" /> Posted in <?php the_category(', ') ?> <?php if(get_the_tags()) { ?> <img src="<?php bloginfo('template_url'); ?>/images/tag.png" /> <?php the_tags('Tags: ', ', '); } ?></div>

<div class="navigation clearfix">
<div class="alignleft"><?php previous_post_link('&laquo; %link') ?></div>
<div class="alignright"><?php next_post_link('%link &raquo;') ?></div>
</div>

<?php if (('open' == $post-> comment_status) && ('open' == $post->ping_status)) {
// Both Comments and Pings are open ?>
You can <a href="#respond">leave a response</a>, or <a href="<?php trackback_url(); ?>" rel="trackback">trackback</a> from your own site.

<?php } elseif (!('open' == $post-> comment_status) && ('open' == $post->ping_status)) {
// Only Pings are Open ?>
Responses are currently closed, but you can <a href="<?php trackback_url(); ?> " rel="trackback">trackback</a> from your own site.

<?php } elseif (('open' == $post-> comment_status) && !('open' == $post->ping_status)) {
// Comments are open, Pings are not ?>
You can skip to the end and leave a response. Pinging is currently not allowed.

<?php } elseif (!('open' == $post-> comment_status) && !('open' == $post->ping_status)) {
// Neither Comments, nor Pings are open ?>
Both comments and pings are currently closed.

<?php } edit_post_link('Edit this entry','','.'); ?>
</div><!--/post-<?php the_ID(); ?>-->

<?php comments_template(); ?>

<?php endwhile; ?>

<?php endif; ?>
</div>
</div>
<?php get_sidebars('right'); ?>
</div>
<?php get_footer(); ?>

 

Hello friend....

Please check after removing
<?php if ( function_exists("has_post_thumbnail") && has_post_thumbnail() ) { the_post_thumbnail(array(300,225), array("class" => "alignleft post_thumbnail")); } ?>
<?php the_content('Read the rest of this entry &raquo;'); ?>
from your code... Thanks..