[DUOS-2840][risk=no] Remove datasets config

[rushtong]

Addresses

https://broadworkbench.atlassian.net/browse/DUOS-2840

Summary

Minor configuration cleanup change
See also: https://github.com/broadinstitute/terra-helmfile/pull/4842

---

Have you read CONTRIBUTING.md lately? If not, do that first.

• Label PR with a Jira ticket number and include a link to the ticket
• Label PR with a security risk modifier [no, low, medium, high]
• PR describes scope of changes
• Get a minimum of one thumbs worth of review, preferably two if enough team members are available
• Get PO sign-off for all non-trivial UI or workflow changes
• Verify all tests go green
• Test this change deployed correctly and works on dev environment after deployment

[fboulnois]

👍

[hams7504]

👍