Issue #3274323: Split ExcludedPathsSubscriber into multiple classes

package_manager/src/EventSubscriber/SiteConfigurationExcluder.php

@@ -44,9 +44,8 @@ class SiteConfigurationExcluder implements EventSubscriberInterface {
    * @see \Drupal\package_manager\Event\ExcludedPathsTrait::excludePath()
    */
   public function ignoreCommonPaths(StageEvent $event): void {
-    // Compile two lists of paths to exclude: paths that are relative to the
-    // project root, and paths that are relative to the web root.
-    $web = $project = [];
+    // Site configuration files are always excluded relative to the web root.
+    $web = [];
 
     // Ignore site-specific settings files, which are always in the web root.
     $settings_files = [
@@ -60,7 +59,6 @@ class SiteConfigurationExcluder implements EventSubscriberInterface {
     }
 
     $this->excludeInWebRoot($event, $web);
-    $this->excludeInProjectRoot($event, $project);
   }
 
   /**