删除不需要的插件添加到购买的WordPress主题中

我正在为客户端定制网站主题。当我去运行速度测试时，我注意到这段代码

<script type='text/javascript' src='http://s7.addthis.com/js/250/addthis_widget.js?domready=1&#038;ver=1'></script>

正在创建几十个重定向到垃圾邮件区域。它只存在于主页上，而不存在于任何其他页面上。Addthis插件似乎是内置在主题中的，我找不到哪里可以删除它。我不想为一个我不需要的插件牺牲速度。

我检查了footer.php文件，然后是functions.php，然后是主题中可以调用这个东西的每个文件。我使用Dreamweaver在主题的整个文件夹中搜索任何包含该代码的文档，但Dreamweave一无所获。如果我激活了一个不同的主题，代码就会消失，所以我知道这是主题在做。我只是不知道怎么做！

有人知道我应该在哪里找什么吗？我一直在到处寻找答案，但一直找不到。这可能是由javascript文件引起的吗？还是加密的PHP？

希望有用的信息：

主题是Mercor，这是一个适合WooCommerce的主题。这是演示页面：http://mercor.premiumcoding.com/。您可以在第1369行附近看到违规代码段所在的位置。

Footer in functions.hp:

    function footer(){
function pmc_recent_footer_excerpt_length( $length ) {
    return 40;
}
function pmc_recent_footer_title($title) { return  substr($title, 0, 40). '';}
add_filter( 'excerpt_length', 'pmc_recent_footer_excerpt_length', 999 );
add_filter('the_title', 'pmc_recent_footer_title') ;
    }

如果我删除了整个片段，那么有问题的代码和整个页脚就会消失。我试着去掉括号里的所有东西，比如：

function footer(){ 
}

但违规代码仍然出现了。

同样在functions.php中，但删除对没有帮助

    function socialLinkCat($link,$title,$email) {
$social = '';
$social .='<div class="addthis_toolbox"><div class="custom_images">';
global $data; 
if($data['facebook_show'] == 1)
$social .= '<a class="addthis_button_facebook" addthis:url="'.$link.'" addthis:title="'.$title.'"  title="'.$data['translation_facebook'].'"><img src="'. get_template_directory_uri() .'/images/facebookIcon.png" width="64" height="64" border="0" alt="'.$data['translation_facebook'].'" /></a>';            
if($data['twitter_show'] == 1)
$social .= '<a class="addthis_button_twitter" addthis:url="'.$link.'" addthis:title="A'.$title.'"  title="'.$data['translation_twitter'].'"><img src="'. get_template_directory_uri() .'/images/twitterIcon.png" width="64" height="64" border="0" alt="'.$data['translation_twitter'].'" /></a>';  
if($data['digg_show'] == 1) 
$social .= '<a class="addthis_button_digg" addthis:url="'.$link.'" addthis:title="'.$title.'" title="'.$data['translation_digg'].'"><img src="'. get_template_directory_uri() .'/images/diggIcon.png" width="64" height="64" border="0" alt="'.$data['translation_digg'].'" /></a>';  
if($data['stumble_show'] == 1)
$social .= '<a class="addthis_button_stumble" addthis:url="'.$link.'" addthis:title="'.$title.'" title="'.$data['translation_stumble'].'"><img src="'. get_template_directory_uri() .'/images/stumbleUponIcon.png" width="64" height="64" border="0" alt="Share to Stumble Upon" /></a>';  
$social .='<a class="addthis_button" addthis:url="'.$link.'" addthis:title="'.$title.'" ><img src="'. get_template_directory_uri() .'/images/socialIconShareMore.png" width="64" height="64" border="0" alt="More..." /></a></div><script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=xa-4f3049381724ac5b"></script>'; 
if($data['email_show'] == 1 && $email) 
$social .= '<a class="emaillink" href="mailto:'.$data['email'].'" title="'.$data['translation_email'].'"></a></div>'; 
$social .= '</div>'; 
echo $social;
    }
    function socialLinkProduct() {
$social = '';
$social ='<div class="addthis_toolbox"><div class="custom_images">';
global $data; 
if($data['facebook_show'] == 1)
$social .= '<a class="addthis_button_facebook" title="'.$data['translation_facebook'].'"><img src="'. get_template_directory_uri() .'/images/icon-facebook-product-single.png" width="16" height="16" border="0" alt="'.$data['translation_facebook'].'" /></a>';            
if($data['twitter_show'] == 1)
$social .= '<a class="addthis_button_twitter" title="'.$data['translation_twitter'].'"><img src="'. get_template_directory_uri() .'/images/icon-twitter-product-single.png" width="16" height="16" border="0" alt="'.$data['translation_twitter'].'" /></a>';  
//if($data['digg_show'] == 1) 
//$social .= '<a class="addthis_button_digg" title="'.$data['translation_digg'].'"><img src="'. get_template_directory_uri() .'/images/diggIcon.png" width="64" height="64" border="0" alt="'.$data['translation_digg'].'" /></a>';  
//if($data['youtube_show'] == 1)
//$social .= '<div><a class="addthis_button_youtube"><img src="'. get_template_directory_uri() .'/images/diggIcon.png" width="64" height="64" border="0" alt="Share to Twitter" /></div></a></div>';  
$social .='<a class="addthis_button_more"><img src="'. get_template_directory_uri() .'/images/icon-more-product-single.png" width="16" height="16" border="0" alt="More..." /></a></div><script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=xa-4f3049381724ac5b"></script>';   
if($data['email_show'] == 1) 
$social .= '<a class="emaillink" href="mailto:'.$data['email'].'" title="'.$data['translation_email'].'"></a></div>'; 
echo $social;
    }
    function socialLinkSingle() {
$social = '';
$social ='<div class="addthis_toolbox"><div class="custom_images">';
global $data; 
if($data['facebook_show'] == 1)
$social .= '<a class="addthis_button_facebook" title="'.$data['translation_facebook'].'"><img src="'. get_template_directory_uri() .'/images/facebookIcon.png" width="64" height="64" border="0" alt="'.$data['translation_facebook'].'" /></a>';            
if($data['twitter_show'] == 1)
$social .= '<a class="addthis_button_twitter" title="'.$data['translation_twitter'].'"><img src="'. get_template_directory_uri() .'/images/twitterIcon.png" width="64" height="64" border="0" alt="'.$data['translation_twitter'].'" /></a>';  
//if($data['digg_show'] == 1) 
//$social .= '<a class="addthis_button_digg" title="'.$data['translation_digg'].'"><img src="'. get_template_directory_uri() .'/images/diggIcon.png" width="64" height="64" border="0" alt="'.$data['translation_digg'].'" /></a>';  
//if($data['youtube_show'] == 1)
//$social .= '<div><a class="addthis_button_youtube"><img src="'. get_template_directory_uri() .'/images/diggIcon.png" width="64" height="64" border="0" alt="Share to Twitter" /></div></a></div>';  
$social .='<a class="addthis_button_more"><img src="'. get_template_directory_uri() .'/images/socialIconShareMore.png" width="64" height="64" border="0" alt="More..." /></a></div><script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=xa-4f3049381724ac5b"></script>';    
if($data['email_show'] == 1) 
$social .= '<a class="emaillink" href="mailto:'.$data['email'].'" title="'.$data['translation_email'].'"></a></div>'; 
echo $social;
    }

页脚.php文件

    <!-- footerwhat -->
    <?php wp_footer();  ?>
    <!-- footerwhat -->

在主页上生成的额外代码行（"…"指的是wp_footer（）添加的预期代码）

    </footer>
    <!-- footer what?! END -->
    ...
    <script type='text/javascript' src='http://s7.addthis.com/js/250/addthis_widget.js?domready=1&#038;ver=1'></script>
    ...
    <!-- footer what?! END -->