title: How do you delete an AWS CloudWatch metric?
body: <p>I am decommissioning a service in Amazon Web Services DynamoDB. We have various metrics and alarms for our DyDB tables. I am able to delete the alarms using 'aws cloudwatch delete-alarms --alarm-names ...' but I do not see any AWS CLI command to delete metrics.</p>
  
  <p>I know metrics keep data for 2 weeks. Is it possible that the metrics will automatically disappear in 2 weeks when no more data is being stored in it? I see no documentation stating that, unfortunately.</p>