diff --git a/lib/Mage/Autoload/Simple.php b/lib/Mage/Autoload/Simple.php
deleted file mode 100644
index 64599153a4c..00000000000
--- a/lib/Mage/Autoload/Simple.php
+++ /dev/null
@@ -1,50 +0,0 @@
-<?php
-/**
- * OpenMage
- *
- * NOTICE OF LICENSE
- *
- * This source file is subject to the Open Software License (OSL 3.0)
- * that is bundled with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * https://opensource.org/licenses/osl-3.0.php
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@magento.com so we can send you a copy immediately.
- *
- * @category Mage
- * @package Mage_Autoload
- * @copyright Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
- * @copyright Copyright (c) 2022 The OpenMage Contributors (https://www.openmage.org)
- * @license https://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
- */
-
-class Mage_Autoload_Simple
-{
- private static $_instance;
-
- public static function instance()
- {
- if (!self::$_instance) {
- $class = __CLASS__;
- self::$_instance = new $class();
- }
- return self::$_instance;
- }
-
- public static function register()
- {
- spl_autoload_register([self::instance(), 'autoload']);
- }
-
- public function autoload($class)
- {
- $classFile = str_replace(' ', DIRECTORY_SEPARATOR, ucwords(str_replace('_', ' ', $class)));
- $classFile .= '.php';
- /** @see https://stackoverflow.com/a/5504486/716029 */
- $found = stream_resolve_include_path($classFile);
- if ($found !== false) {
- include $found;
- }
- }
-}
diff --git a/lib/Magento/Autoload/ClassMap.php b/lib/Magento/Autoload/ClassMap.php
deleted file mode 100644
index bc2b5c28d52..00000000000
--- a/lib/Magento/Autoload/ClassMap.php
+++ /dev/null
@@ -1,96 +0,0 @@
-<?php
-/**
- * OpenMage
- *
- * NOTICE OF LICENSE
- *
- * This source file is subject to the Open Software License (OSL 3.0)
- * that is bundled with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * https://opensource.org/licenses/osl-3.0.php
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@magento.com so we can send you a copy immediately.
- *
- * @category Magento
- * @package Magento_Autoload
- * @copyright Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
- * @copyright Copyright (c) 2022 The OpenMage Contributors (https://www.openmage.org)
- * @license https://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
- */
-
-namespace Magento\Autoload;
-
-class ClassMap
-{
- /**
- * Absolute path to base directory that will be prepended as prefix to the included files
- *
- * @var string
- */
- protected $_baseDir;
-
- /**
- * Map of class name to file (relative to the base directory)
- *
- * array(
- * 'Class_Name' => 'relative/path/to/Class/Name.php',
- * )
- *
- * @var array
- */
- protected $_map = [];
-
- /**
- * Set base directory absolute path
- *
- * @param string $baseDir
- * @throws \InvalidArgumentException
- */
- public function __construct($baseDir)
- {
- $this->_baseDir = realpath($baseDir);
- if (!$this->_baseDir || !is_dir($this->_baseDir)) {
- throw new \InvalidArgumentException("Specified path is not a valid directory: '{$baseDir}'");
- }
- }
-
- /**
- * Find an absolute path to a file to be included
- *
- * @param string $class
- * @return string|bool
- */
- public function getFile($class)
- {
- if (isset($this->_map[$class])) {
- return $this->_baseDir . DIRECTORY_SEPARATOR . $this->_map[$class];
- }
- return false;
- }
-
- /**
- * Add classes files declaration to the map. New map will override existing values if such was defined before.
- *
- * @param array $map
- * @return \Magento\Autoload\ClassMap
- */
- public function addMap(array $map)
- {
- $this->_map = array_merge($this->_map, $map);
- return $this;
- }
-
- /**
- * Resolve a class file and include it
- *
- * @param string $class
- */
- public function load($class)
- {
- $file = $this->getFile($class);
- if (file_exists($file)) {
- include $file;
- }
- }
-}
diff --git a/lib/Magento/Autoload/IncludePath.php b/lib/Magento/Autoload/IncludePath.php
deleted file mode 100644
index 5e95cd06ca6..00000000000
--- a/lib/Magento/Autoload/IncludePath.php
+++ /dev/null
@@ -1,89 +0,0 @@
-<?php
-/**
- * OpenMage
- *
- * NOTICE OF LICENSE
- *
- * This source file is subject to the Open Software License (OSL 3.0)
- * that is bundled with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * https://opensource.org/licenses/osl-3.0.php
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@magento.com so we can send you a copy immediately.
- *
- * @category Magento
- * @package Magento_Autoload
- * @copyright Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
- * @copyright Copyright (c) 2022 The OpenMage Contributors (https://www.openmage.org)
- * @license https://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
- */
-
-namespace Magento\Autoload;
-
-class IncludePath
-{
- /**
- * Namespaces separator
- */
- public const NS_SEPARATOR = '\\';
-
- /**
- * Find a file in include path
- *
- * @param string $class
- * @return string|bool
- */
- public static function getFile($class)
- {
- $relativePath = self::getFilePath($class);
- return stream_resolve_include_path($relativePath);
- }
-
- /**
- * Get relative file path for specified class
- *
- * @static
- * @param string $class
- * @return string
- */
- public static function getFilePath($class)
- {
- if (strpos($class, self::NS_SEPARATOR) !== false) {
- $class = ltrim(str_replace(self::NS_SEPARATOR, '_', $class), '_');
- }
- return str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
- }
-
- /**
- * Add specified path(s) to the current include_path
- *
- * @param string|array $path
- * @param bool $prepend Whether to prepend paths or to append them
- */
- public static function addIncludePath($path, $prepend = true)
- {
- $includePathExtra = implode(PATH_SEPARATOR, (array)$path);
- $includePath = get_include_path();
- $pathSeparator = $includePath && $includePathExtra ? PATH_SEPARATOR : '';
- if ($prepend) {
- $includePath = $includePathExtra . $pathSeparator . $includePath;
- } else {
- $includePath = $includePath . $pathSeparator . $includePathExtra;
- }
- set_include_path($includePath);
- }
-
- /**
- * Resolve a class file and include it
- *
- * @param $class
- */
- public static function load($class)
- {
- $file = self::getFile($class);
- if ($file) {
- include $file;
- }
- }
-}
diff --git a/lib/Magento/Autoload/Simple.php b/lib/Magento/Autoload/Simple.php
deleted file mode 100644
index 634593e8c3f..00000000000
--- a/lib/Magento/Autoload/Simple.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-/**
- * OpenMage
- *
- * NOTICE OF LICENSE
- *
- * This source file is subject to the Open Software License (OSL 3.0)
- * that is bundled with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * https://opensource.org/licenses/osl-3.0.php
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@magento.com so we can send you a copy immediately.
- *
- * @category Magento
- * @package Magento_Autoload
- * @copyright Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
- * @copyright Copyright (c) 2022 The OpenMage Contributors (https://www.openmage.org)
- * @license https://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
- */
-
-namespace Magento\Autoload;
-
-class Simple
-{
- private static $_instance;
-
- public static function instance()
- {
- if (!self::$_instance) {
- $class = __CLASS__;
- self::$_instance = new $class();
- }
- return self::$_instance;
- }
-
- public static function register()
- {
- spl_autoload_register([self::instance(), 'autoload']);
- }
-
- public function autoload($class)
- {
- $classFile = str_replace(' ', DIRECTORY_SEPARATOR, ucwords(str_replace('_', ' ', $class)));
- $classFile .= '.php';
- /** @see https://stackoverflow.com/a/5504486/716029 */
- $found = stream_resolve_include_path($classFile);
- if ($found !== false) {
- include $found;
- }
- }
-}