only in patch2:
unchanged:
--- a/core/themes/stable/stable.info.yml
+++ b/core/themes/stable/stable.info.yml
@@ -220,10 +220,6 @@ libraries-override:
     css:
       theme:
         css/user.admin.css: css/user/user.admin.css
-  user/drupal.user.icons:
-    css:
-      theme:
-        css/user.icons.admin.css: css/user/user.icons.admin.css
 
   views/views.module:
     css: