Clean up Reich Lab AWS IAM users

[bsweger]

[Not really a reichlab.io issues, just needed to park it somewhere]

Background

As part of a recent security review, we identified a number of IAM users in the Reich Lab AWS account that likely no longer need access.

Definition of done

For each of the users on this list, find out:

• Do they need access to the AWS account
• If yes, are they logging in to the AWS console or programmatically access resources via an access key
• Does user have an active access key that has been unused longer than a year?

We should remove users who don't access the AWS account and remove console access for anyone who uses AWS for programmatic access to resources. Active access keys that have been unused for longer than a year should be disabled.

[bsweger]

Today, deleted three IAM accounts that hasn't had activity in the past year, one account that has never been used, and one account who's user confirmed it's no longer needed.