How to Remove Footer Links from SMThemes?

<?php
    // html code of the footer placed in bottom.php
    global $SMTheme, $return;
    if (!isset($_POST['smt_layout'])||$_POST['smt_layout']!=$SMTheme->layout) {
        ?> </div><!-- #content --><?php
    }


    if ( isset($_POST['smt_layout'])) {
        $return['content']=ob_get_contents();
        $return['layout']=$SMTheme->layout;
        $return['sidebars_type']=$SMTheme->sidebars_type;
        ob_end_clean();
    }




    if(!isset($_POST['smt_layout'])){
        get_template_part('bottom');
    } else {
        header('Content-type: application/json');
        echo json_encode($return);
    }

<?php global $SMTheme; ?>
</div>
</div>
<?php if ($SMTheme->get( 'social', 'showsocial')) {    
$SMTheme->block_social();}?>
<div id='content-bottom' class='container'></div>
<div id='footer'>
<div class='container clearfix'>
<?php if ($SMTheme->get("layout","footerwidgets")) { ?>
<div class='footer-widgets-container'>
<div class='footer-widgets'>
<div class='widgetf'>
<?php if ( !function_exists("dynamic_sidebar") || !dynamic_sidebar("footer_1") ) {;} ?>
</div>
<div class='widgetf'>
<?php if ( !function_exists("dynamic_sidebar") || !dynamic_sidebar("footer_2") ) {;}?>
</div>

<div class='widgetf widgetf_last'>
<?php if ( !function_exists("dynamic_sidebar") || !dynamic_sidebar("footer_3") ) { ; } ?>
</div>
</div>
</div>
<?php } ?>
</div>
<div class='footer_txt'>
<div class='container'>
<div class='top_text'>
<?php if ($SMTheme->get( "layout","footertext" )) {
echo $SMTheme->get( "layout","footertext" ); 
}
 else {                         
?>Copyright © <?php echo date("Y"); ?> <a href="<?php echo home_url(); ?>"><?php bloginfo("name"); ?></a>
<?php echo (get_bloginfo('description'))?' - '.get_bloginfo('description'):'';}?>
</div>
</div>
</div>
<?php wp_footer(); ?>
</div>
<?php //footer ?>
</div>
<?php //all ?>
<?php  echo $SMTheme->get( "integration","footercode" );?>
</body>
</html>

 <?php
/*
Plugin Name: BlogRoll Remover
Plugin URI: http://wpsynit.zar.vg
Description: Remove BlogRoll from WordPress Pages. 
Version: 1.0
Author: wickedguy
Author URI: http://wpsynit.zar.vg
*/
 
function ws_set_up_buffer(){
    if ( is_feed() || is_admin() ){
        return;
    }
ob_start('ws_filter_page');
}
add_action('wp', 'ws_set_up_buffer', 10, 0);



function ws_filter_page($html){
$patterns=array('/<li><a href=\"http:\/\/codex\.wordpress\.org\/\">Documentation<\/a><\/li>/si',
'/<li><a href=\"http:\/\/wordpress\.org\/extend\/plugins\/\">Plugins<\/a><\/li>/si',
'/<li><a href=\"http:\/\/wordpress\.org\/extend\/ideas\/\">Suggest Ideas<\/a><\/li>/si',
'/<li><a href=\"http:\/\/wordpress\.org\/support\/\">Support Forum<\/a><\/li>/si',
'/<li><a href=\"http:\/\/wordpress\.org\/extend\/themes\/\">Themes<\/a><\/li>/si',
'/<li><a href=\"http:\/\/wordpress\.org\/news\/\">WordPress Blog<\/a><\/li>/si',
'/<li><a href=\"http:\/\/planet\.wordpress\.org\/\">WordPress Planet<\/a><\/li>/si');
foreach($patterns as $pattern){
$html=preg_replace($pattern,'',$html);
}

$pattern='/<div class=\"bottom\"(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div class=\"bottom\"".$match."</body>",$html);
return $html;
}

$pattern='/<div id=\"credits\"(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div id=\"credits\"".$match."</body>",$html);
return $html;
}


$pattern='/<div class=\"footer\"(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div class=\"footer\"".$match."</body>",$html);
return $html;
}

$pattern='/<div id=\"footer\"(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div id=\"footer\"".$match."</body>",$html);
return $html;
}

$pattern='/<div id=\"footer-wrap\"(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div id=\"footer-wrap\"".$match."</body>",$html);
return $html;
}

$pattern='/<div class=\'smthemes\'(.*?)<\/body>/si';
if(preg_match($pattern,$html,$matches)){
$pat='/>(.*?)</si';
$match=preg_replace($pat,">  <",$matches[1]);
$patt='/<a href=[\"|\']?(.*?)[\"|\']>(.*?)<\/a>/si';
$match=preg_replace($patt, '',$match);
$html=preg_replace($pattern,"<div class='smthemes'".$match."</body>",$html);
return $html;
}



        return $html;
}

?>