diff --git a/library/smarty/libs/plugins/outputfilter.trimwhitespace.php b/library/smarty/libs/plugins/outputfilter.trimwhitespace.php
deleted file mode 100644
--- a/library/smarty/libs/plugins/outputfilter.trimwhitespace.php
+++ /dev/null
@@ -1,89 +0,0 @@
-<?php
-/**
- * Smarty plugin
- *
- * @package    Smarty
- * @subpackage PluginsFilter
- */
-
-/**
- * Smarty trimwhitespace outputfilter plugin
- * Trim unnecessary whitespace from HTML markup.
- *
- * @author   Rodney Rehm
- *
- * @param string $source input string
- *
- * @return string filtered output
- * @todo     substr_replace() is not overloaded by mbstring.func_overload - so this function might fail!
- */
-function smarty_outputfilter_trimwhitespace($source) {
-    $store = array();
-    $_store = 0;
-    $_offset = 0;
-
-    // Unify Line-Breaks to \n
-    $source = preg_replace("/\015\012|\015|\012/", "\n", $source);
-
-    // capture Internet Explorer Conditional Comments
-    if (preg_match_all('#<!--\[[^\]]+\]>.*?<!\[[^\]]+\]-->#is', $source, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER)) {
-        foreach ($matches as $match) {
-            $store[] = $match[0][0];
-            $_length = strlen($match[0][0]);
-            $replace = '@!@SMARTY:' . $_store . ':SMARTY@!@';
-            $source = substr_replace($source, $replace, $match[0][1] - $_offset, $_length);
-
-            $_offset += $_length - strlen($replace);
-            $_store++;
-        }
-    }
-
-    // Strip all HTML-Comments
-    // yes, even the ones in <script> - see http://stackoverflow.com/a/808850/515124
-    $source = preg_replace('#<!--.*?-->#ms', '', $source);
-
-    // capture html elements not to be messed with
-    $_offset = 0;
-    if (preg_match_all('#(<script[^>]*>.*?</script[^>]*>)|(<textarea[^>]*>.*?</textarea[^>]*>)|(<pre[^>]*>.*?</pre[^>]*>)#is', $source, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER)) {
-        foreach ($matches as $match) {
-            $store[] = $match[0][0];
-            $_length = strlen($match[0][0]);
-            $replace = '@!@SMARTY:' . $_store . ':SMARTY@!@';
-            $source = substr_replace($source, $replace, $match[0][1] - $_offset, $_length);
-
-            $_offset += $_length - strlen($replace);
-            $_store++;
-        }
-    }
-
-    $expressions = array(
-        // replace multiple spaces between tags by a single space
-        // can't remove them entirely, becaue that might break poorly implemented CSS display:inline-block elements
-        '#(:SMARTY@!@|>)\s+(?=@!@SMARTY:|<)#s' => '\1 \2',
-        // remove spaces between attributes (but not in attribute values!)
-        '#(([a-z0-9]\s*=\s*("[^"]*?")|(\'[^\']*?\'))|<[a-z0-9_]+)\s+([a-z/>])#is' => '\1 \5',
-        // note: for some very weird reason trim() seems to remove spaces inside attributes.
-        // maybe a \0 byte or something is interfering?
-        '#^\s+<#Ss' => '<',
-        '#>\s+$#Ss' => '>',
-    );
-
-    $source = preg_replace(array_keys($expressions), array_values($expressions), $source);
-    // note: for some very weird reason trim() seems to remove spaces inside attributes.
-    // maybe a \0 byte or something is interfering?
-    // $source = trim( $source );
-
-    $_offset = 0;
-    if (preg_match_all('#@!@SMARTY:([0-9]+):SMARTY@!@#is', $source, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER)) {
-        foreach ($matches as $match) {
-            $_length = strlen($match[0][0]);
-            $replace = $store[$match[1][0]];
-            $source = substr_replace($source, $replace, $match[0][1] + $_offset, $_length);
-
-            $_offset += strlen($replace) - $_length;
-            $_store++;
-        }
-    }
-
-    return $source;
-}