cleanup

docs/guide/upgrading/9.0.md

@@ -570,13 +570,6 @@ class MyForm extends SharpForm
 }
 ```
 
-<!--
-List `->withListField(string $fieldKey, Closure $subLayoutCallback)` for List fields, which requires a sub-layout handled by a callback.
-
-List Fields that used `->withSingleField()` will not work anymore as these methods no longer take a callback.
-You must migrate your list fields to the new layout method `->withListField()`.
--->
-
 ## Form and Show Fields are now formatted even if you don’t transform them
 
 This shouldn’t cause any trouble, as this is a fix, but it could break unorthodox code: field formatters (which are used to format the field value for the frontend) are now properly and always called before displaying data to the front, even if you don’t transform your data with `$this->transform()` method.