Single.php'de konu içi resmi nasıl kaldırabilirim ?

<?php if ( function_exists('has_post_thumbnail') && has_post_thumbnail() ) { the_post_thumbnail(array(300,225), array('class' => 'alignleft post_thumbnail')); } ?>

<?php get_header(); ?>
    <div class="span-24" id="contentwrap">    
            <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('j F 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('Düzenle', '', ''); } ?></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 more &raquo;'); ?>



                                <?php wp_link_pages(array('before' => '<p><strong>Pages:</strong> ', 'after' => '</p>', 'next_or_number' => 'number')); ?>
                            </div>

<?php if(function_exists('selfserv_sexy')) { selfserv_sexy(); } ?>
                            <div class="postmeta"><img src="<?php bloginfo('template_url'); ?>/images/folder.png" /> Kategori <?php the_category(', ') ?> <?php if(get_the_tags()) { ?> <img src="<?php bloginfo('template_url'); ?>/images/tag.png" /> <?php  the_tags('Etiketler: ', ', '); } ?></div>

<div class="mntclass">TAVSİYE YAZILAR</div>
<div style="width:500px; padding:4px; background:#EAEAEA; margin-bottom:10px;">
<?php boposts_show(); ?>
<div style="clear:left;"></div>
</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>


                            

                        </div><!--/post-<?php the_ID(); ?>-->
                        
                <?php comments_template(); ?>
                
                <?php endwhile; ?>
            
                <?php endif; ?>

            </div>
            </div>

        <?php get_sidebars(); ?>
    </div>


<?php get_footer(); ?>

function resim_kaldir($icerik)
{
	$cikti = preg_replace('|<img(.*?)\/>|is', null, $icerik);
	return $cikti;
}

add_filter('the_content', 'resim_kaldir');