Revert "Fix composer autoloader project path"

This reverts commit 8fad6d5.

Author: ondrejmirtes

bin/phpstan

@@ -93,11 +93,7 @@ use Symfony\Component\Console\Helper\ProgressBar;
 	}
 
 	$autoloadProjectAutoloaderFile = function (string $file) use (&$composerAutoloaderProjectPaths): void {
-		$path = realpath(dirname(__DIR__) . $file);
-		if ($path === false) {
-			return;
-		}
-
+		$path = dirname(__DIR__) . $file;
 		if (!extension_loaded('phar')) {
 			if (@is_file($path)) {
 				$composerAutoloaderProjectPaths[] = dirname($path, 2);
@@ -113,8 +109,8 @@ use Symfony\Component\Console\Helper\ProgressBar;
 					require_once $path;
 				}
 			} else {
-				$path = realpath(dirname($pharPath) . $file);
-				if ($path !== false && @is_file($path)) {
+				$path = dirname($pharPath) . $file;
+				if (@is_file($path)) {
 					$composerAutoloaderProjectPaths[] = dirname($path, 2);
 
 					require_once $path;