The CloudFront origin access identity to associate with the distribution. Use an origin access identity to configure the distribution so that end users can only access objects in an Amazon S3 bucket through CloudFront.
If you want end users to be able to access objects using either the CloudFront URL or the Amazon S3 URL, specify an empty OriginAccessIdentity element.
To delete the origin access identity from an existing distribution, update the distribution configuration and include an empty OriginAccessIdentity element.
To replace the origin access identity, update the distribution configuration and specify the new origin access identity.