Remove temporary rake tasks to fix first_made_live_at

[stephencdaly]

What problem does this pull request solve?

Trello card: https://trello.com/c/V0dHiM1s

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• Do the end to end tests need updating before these changes will pass?
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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

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