Remove one or more tags from your private CA.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/acm-pca/untag-certificate-authority.html
| aws acm-pca untag-certificate-authority \ |
| What Is ACM PCA? - AWS Certificate Manager Private Certificate Authority : http://docs.aws.amazon.com/acm-pca/latest/userguide/PcaCaTagging.html |