Remove app asset details polyfill
Remove app asset details polyfill

The local details polyfill conflicted with the govuk-frontend polyfill,
causing the details component to be inaccessible for IE11 users.

ministryofjustice/advocate-defence-payments,ministryofjustice/advocate-defence-payments,ministryofjustice/advocate-defence-payments,ministryofjustice/advocate-defence-payments