Remove dead code from bin/phpunit (#1443)

Author: rosier

phpunit/phpunit/11.1/bin/phpunit

@@ -1,23 +1,4 @@
 #!/usr/bin/env php
 <?php
 
-if (!ini_get('date.timezone')) {
-    ini_set('date.timezone', 'UTC');
-}
-
-if (is_file(dirname(__DIR__).'/vendor/phpunit/phpunit/phpunit')) {
-    if (PHP_VERSION_ID >= 80000) {
-        require dirname(__DIR__).'/vendor/phpunit/phpunit/phpunit';
-    } else {
-        define('PHPUNIT_COMPOSER_INSTALL', dirname(__DIR__).'/vendor/autoload.php');
-        require PHPUNIT_COMPOSER_INSTALL;
-        PHPUnit\TextUI\Command::main();
-    }
-} else {
-    if (!is_file(dirname(__DIR__).'/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php')) {
-        echo "Unable to find the `simple-phpunit.php` script in `vendor/symfony/phpunit-bridge/bin/`.\n";
-        exit(1);
-    }
-
-    require dirname(__DIR__).'/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php';
-}
+require dirname(__DIR__).'/vendor/phpunit/phpunit/phpunit';