aws ec2 detach-image-watermark
Removes a watermark from the specified AMI. AWS CLI reference
3 options Its page in the AWS CLI reference
Options
--dry-runChecks whether you have the required permissions for the action, without actually making the request, and provides an error response.--image-idThe ID of the AMI.--watermark-keyThe watermark key to remove, in accountId:watermarkName format (for example, 123456789012:approvedAmi).