Issue #3321282: Add 'declare(strict_types = 1)' where needed

package_manager/src/PathLocator.php

@@ -69,12 +69,7 @@ class PathLocator {
    */
   public function getProjectRoot(): string {
     // Assume that the vendor directory is immediately below the project root.
-    $project_root = $this->getVendorDirectory() . DIRECTORY_SEPARATOR . '..';
-
-    // @see https://github.com/bovigo/vfsStream/issues/207
-    return !str_starts_with($project_root, 'vfs://')
-      ? realpath($project_root)
-      : $project_root;
+    return realpath($this->getVendorDirectory() . DIRECTORY_SEPARATOR . '..');
   }
 
   /**