Deletes a custom permissions profile from a user.
See https://www.paws-r-sdk.com/docs/quicksight_delete_user_custom_permission/ for full documentation.
quicksight_delete_user_custom_permission(UserName, AwsAccountId, Namespace)
[required] The username of the user that you want to remove custom permissions from.
[required] The ID of the Amazon Web Services account that contains the custom permission configuration that you want to delete.
[required] The namespace that the user belongs to.