diff --git a/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php b/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
index b7dbbc9b4ef7266f3fc6b6ce29c241b24abc4481..88517a6aaba21ca0c4c0bfb419d899b1444368e0 100644
--- a/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
+++ b/core/lib/Drupal/Core/Asset/CssCollectionOptimizerLazy.php
@@ -143,19 +143,7 @@ public function getAll() {
    */
   public function deleteAll() {
     $this->state->delete('drupal_css_cache_files');
-
-    $delete_stale = function ($uri) {
-      $threshold = $this->configFactory
-        ->get('system.performance')
-        ->get('stale_file_threshold');
-      // Default stale file threshold is 30 days.
-      if ($this->time->getRequestTime() - filemtime($uri) > $threshold) {
-        $this->fileSystem->delete($uri);
-      }
-    };
-    if (is_dir('assets://css')) {
-      $this->fileSystem->scanDirectory('assets://css', '/.*/', ['callback' => $delete_stale]);
-    }
+    $this->fileSystem->deleteRecursive('assets://css');
   }
 
   /**
diff --git a/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php b/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
index 0ed426dc0f1245eda923848fcdca5089f077073d..cff3bb49c5f872799de2bf097eee096d2607d2b7 100644
--- a/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
+++ b/core/lib/Drupal/Core/Asset/JsCollectionOptimizerLazy.php
@@ -158,18 +158,7 @@ public function getAll() {
    */
   public function deleteAll() {
     $this->state->delete('system.js_cache_files');
-    $delete_stale = function ($uri) {
-      $threshold = $this->configFactory
-        ->get('system.performance')
-        ->get('stale_file_threshold');
-      // Default stale file threshold is 30 days.
-      if ($this->time->getRequestTime() - filemtime($uri) > $threshold) {
-        $this->fileSystem->delete($uri);
-      }
-    };
-    if (is_dir('assets://js')) {
-      $this->fileSystem->scanDirectory('assets://js', '/.*/', ['callback' => $delete_stale]);
-    }
+    $this->fileSystem->deleteRecursive('assets://js');
   }
 
   /**