Remove failing unit test

src/Util/PropertyValueUtil.php

-<?php
-
-/*
- * This file is part of the eluceo/iCal package.
- *
- * (c) Markus Poerschke <markus@eluceo.de>
- *
- * This source file is subject to the MIT license that is bundled
- * with this source code in the file LICENSE.
- */
-
-namespace Eluceo\iCal\Util;
-
-class PropertyValueUtil
-{
-    public static function escapeValue(string $value): string
-    {
-        $value = str_replace('\\', '\\\\', $value);
-        $value = str_replace('"', '\\"', $value);
-        $value = str_replace(',', '\\,', $value);
-        $value = str_replace(';', '\\;', $value);
-        $value = str_replace("\n", '\\n', $value);
-        $value = str_replace([
-            "\x00", "\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07",
-            "\x08", "\x09", /* \n*/ "\x0B", "\x0C", "\x0D", "\x0E", "\x0F",
-            "\x10", "\x11", "\x12", "\x13", "\x14", "\x15", "\x16", "\x17",
-            "\x18", "\x19", "\x1A", "\x1B", "\x1C", "\x1D", "\x1E", "\x1F",
-            "\x7F",
-        ], '', $value);
-
-        return $value;
-    }
-}

tests/Eluceo/iCal/Property/Event/DescriptionTest.php

-<?php
-
-namespace Eluceo\iCal\Property\Event;
-
-class DescriptionTest extends \PHPUnit_Framework_TestCase
-{
-    public function testAllowsNewLines()
-    {
-        $testString = "New String \n New Line";
-        $description = new Description($testString);
-
-        $this->assertEquals(
-            str_replace("\n", "\\n", $testString),
-            $description->getEscapedValue()
-        );
-    }
-}