diff --git a/library/Icinga/Util/String.php b/library/Icinga/Util/String.php
deleted file mode 100644
index 1a879077c..000000000
--- a/library/Icinga/Util/String.php
+++ /dev/null
@@ -1,159 +0,0 @@
-<?php
-/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
-
-namespace Icinga\Util;
-
-/**
- * Common string functions
- *
- * @deprecated(el): For backwards compatibility only. Use StringHelper instead.
- */
-class String
-{
-    /**
-     * Split string into an array and trim spaces
-     *
-     * @param   string  $value
-     * @param   string  $delimiter
-     *
-     * @return array
-     */
-    public static function trimSplit($value, $delimiter = ',')
-    {
-        return array_map('trim', explode($delimiter, $value));
-    }
-
-    /**
-     * Uppercase the first character of each word in a string
-     *
-     * Converts 'first_name' to 'FirstName' for example.
-     *
-     * @param   string $name
-     * @param   string $separator Word separator
-     *
-     * @return  string
-     */
-    public static function cname($name, $separator = '_')
-    {
-        return str_replace(' ', '', ucwords(str_replace($separator, ' ', strtolower($name))));
-    }
-
-    /**
-     * Add ellipsis when a string is longer than max length
-     *
-     * @param   string  $string
-     * @param   int     $maxLength
-     * @param   string  $ellipsis
-     *
-     * @return  string
-     */
-    public static function ellipsis($string, $maxLength, $ellipsis = '...')
-    {
-        if (strlen($string) > $maxLength) {
-            return substr($string, 0, $maxLength - strlen($ellipsis)) . $ellipsis;
-        }
-
-        return $string;
-    }
-
-    /**
-     * Add ellipsis in the center of a string when a string is longer than max length
-     *
-     * @param   string  $string
-     * @param   int     $maxLength
-     * @param   string  $ellipsis
-     *
-     * @return  string
-     */
-    public static function ellipsisCenter($string, $maxLength, $ellipsis = '...')
-    {
-        $start = ceil($maxLength / 2.0);
-        $end = floor($maxLength / 2.0);
-        if (strlen($string) > $maxLength) {
-            return substr($string, 0, $start - strlen($ellipsis)) . $ellipsis . substr($string, - $end);
-        }
-
-        return $string;
-    }
-
-    /**
-     * Find and return all similar strings in $possibilites matching $string with the given minimum $similarity
-     *
-     * @param   string  $string
-     * @param   array   $possibilities
-     * @param   float   $similarity
-     *
-     * @return  array
-     */
-    public static function findSimilar($string, array $possibilities, $similarity = 0.33)
-    {
-        if (empty($string)) {
-            return array();
-        }
-
-        $matches = array();
-        foreach ($possibilities as $possibility) {
-            $distance = levenshtein($string, $possibility);
-            if ($distance / strlen($string) <= $similarity) {
-                $matches[] = $possibility;
-            }
-        }
-
-        return $matches;
-    }
-
-    /**
-     * Test whether the given string ends with the given suffix
-     *
-     * @param   string  $string The string to test
-     * @param   string  $suffix The suffix the string must end with
-     *
-     * @return bool
-     */
-    public static function endsWith($string, $suffix)
-    {
-        $stringSuffix = substr($string, -strlen($suffix));
-        return $stringSuffix !== false ? $stringSuffix === $suffix : false;
-    }
-
-    /**
-     * Generates an array of strings that constitutes the cartesian product of all passed sets, with all
-     * string combinations concatenated using the passed join-operator.
-     *
-     * <pre>
-     *  cartesianProduct(
-     *      array(array('foo', 'bar'), array('mumble', 'grumble', null)),
-     *      '_'
-     *  );
-     *     => array('foo_mumble', 'foo_grumble', 'bar_mumble', 'bar_grumble', 'foo', 'bar')
-     * </pre>
-     *
-     * @param   array   $sets   An array of arrays containing all sets for which the cartesian
-     *                          product should be calculated.
-     * @param   string  $glue   The glue used to join the strings, defaults to ''.
-     *
-     * @returns array           The cartesian product in one array of strings.
-     */
-    public static function cartesianProduct(array $sets, $glue = '')
-    {
-        $product = null;
-        foreach ($sets as $set) {
-            if (! isset($product)) {
-                $product = $set;
-            } else {
-                $newProduct = array();
-                foreach ($product as $strA) {
-                    foreach ($set as $strB) {
-                        if ($strB === null) {
-                            $newProduct []= $strA;
-                        } else {
-                            $newProduct []= $strA . $glue . $strB;
-                        }
-                    }
-                }
-                $product = $newProduct;
-            }
-        }
-        return $product;
-    }
-}