How to Disable File Upload in File Browser

With FCKEditor and the built in file browser, how can the file upload be disabled. I added this to the config.php:

$config['AccessControl'][] = Array(
'role' => '*',
'resourceType' => '*',
'folder' => '/',

'folderView' => true,
'folderCreate' => false,
'folderRename' => false,
'folderDelete' => false,

'fileView' => true,
'fileUpload' => false,
'fileRename' => false,
'fileDelete' => false);

And I cleared the cache and refreshed, but file uploading and folder creation still works.

How can it be disabled.

Thanks.