MAGETWO-94948: Can't delete an option from Fixed Product Tax

Author: OlgaVasyltsun

app/code/Magento/Weee/Ui/DataProvider/Product/Form/Modifier/Weee.php

@@ -155,6 +155,7 @@ protected function modifyAttributeConfig($attributeCode, array $attributeConfig)
                         'dndConfig' => [
                             'enabled' => false,
                         ],
+                        'required' => (bool)$attributeConfig['arguments']['data']['config']['required'],
                     ],
                 ],
             ],