diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/FormViewHelper.php b/typo3/sysext/fluid/Classes/ViewHelpers/FormViewHelper.php
index 8e0c53de94320b1f116c41ca3b2e5eea8ab3e7c7..730f4e633cea7674937c342099c11e148ae3fd3c 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/FormViewHelper.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/FormViewHelper.php
@@ -395,28 +395,6 @@ class FormViewHelper extends AbstractFormViewHelper
         }
     }
 
-    /**
-     * Add the URI arguments after postprocessing to the request hash as well.
-     * @param array $arguments
-     * @param array $results
-     * @param string $currentPrefix
-     * @param int $level
-     */
-    protected function postProcessUriArgumentsForRequestHash($arguments, &$results, $currentPrefix = '', $level = 0)
-    {
-        if (count($arguments)) {
-            foreach ($arguments as $argumentName => $argumentValue) {
-                $argumentName = (string)$argumentName;
-                if (is_array($argumentValue)) {
-                    $prefix = $level == 0 ? $argumentName : $currentPrefix . '[' . $argumentName . ']';
-                    $this->postProcessUriArgumentsForRequestHash($argumentValue, $results, $prefix, $level + 1);
-                } else {
-                    $results[] = $level == 0 ? $argumentName : $currentPrefix . '[' . $argumentName . ']';
-                }
-            }
-        }
-    }
-
     /**
      * Retrieves the default field name prefix for this form
      *
diff --git a/typo3/sysext/fluid/Tests/Unit/ViewHelpers/FormViewHelperTest.php b/typo3/sysext/fluid/Tests/Unit/ViewHelpers/FormViewHelperTest.php
deleted file mode 100644
index c95f4de7fae279be03ad33cee487de28d22c1e93..0000000000000000000000000000000000000000
--- a/typo3/sysext/fluid/Tests/Unit/ViewHelpers/FormViewHelperTest.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the TYPO3 CMS project.
- *
- * It is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License, either version 2
- * of the License, or any later version.
- *
- * For the full copyright and license information, please read the
- * LICENSE.txt file that was distributed with this source code.
- *
- * The TYPO3 project - inspiring people to share!
- */
-
-namespace TYPO3\CMS\Fluid\Tests\Unit\ViewHelpers;
-
-use TYPO3\CMS\Fluid\ViewHelpers\FormViewHelper;
-use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
-
-class FormViewHelperTest extends UnitTestCase
-{
-    /**
-     * Data Provider for postProcessUriArgumentsForRequestHashWorks
-     */
-    public function argumentsForPostProcessUriArgumentsForRequestHash(): array
-    {
-        return [
-            // simple values
-            [
-                [
-                    'bla' => 'X',
-                    'blubb' => 'Y',
-                ],
-                [
-                    'bla',
-                    'blubb',
-                ],
-            ],
-            // Arrays
-            [
-                [
-                    'bla' => [
-                        'test1' => 'X',
-                        'test2' => 'Y',
-                    ],
-                    'blubb' => 'Y',
-                ],
-                [
-                    'bla[test1]',
-                    'bla[test2]',
-                    'blubb',
-                ],
-            ],
-        ];
-    }
-
-    /**
-     * @test
-     * @dataProvider argumentsForPostProcessUriArgumentsForRequestHash
-     * @param $arguments
-     * @param $expectedResults
-     */
-    public function postProcessUriArgumentsForRequestHashWorks($arguments, $expectedResults): void
-    {
-        $formViewHelper = new FormViewHelper();
-        $results = [];
-        $mock = \Closure::bind(static function (FormViewHelper $formViewHelper) use ($arguments, &$results) {
-            return $formViewHelper->postProcessUriArgumentsForRequestHash($arguments, $results);
-        }, null, FormViewHelper::class);
-        $mock($formViewHelper);
-        self::assertEquals($expectedResults, $results);
-    }
-}