[Feature flag] Cleanup license_scanning_sbom_scanner

Summary

This issue is to cleanup the license_scanning_sbom_scanner feature flag, after the feature flag has been enabled by default for an appropriate amount of time in production.

Links

Feature flag rollout issue: #385173 (closed)

Main feature issue: Implement License Scanning SBOM scanner (#384932 - closed)

Main doc issue: Document new License Scanning SBOM Scanner (#388439 - closed)

Release post: https://about.gitlab.com/releases/2023/02/22/gitlab-15-9-released/#new-license-compliance-scanner

Release post MR: gitlab-com/www-gitlab-com!119232 (merged)

Owners

• Team: groupcomposition analysis
• Most appropriate slack channel to reach out to: #g_secure-composition-analysis
• Best individual to reach out to: @brytannia
• PM: @sam.white

Stakeholders

Expectations

What might happen if this goes wrong?

Cleaning up the feature flag

• Create a merge request to remove <feature-flag-name> feature flag. Ask for review and merge it.
  • Remove all references to the feature flag from the codebase.
  • Remove the YAML definitions for the feature from the repository.
  • Create a changelog entry.
• Ensure that the cleanup MR has been deployed to both production and canary. If the merge request was deployed before the code cutoff, the feature can be officially announced in a release blog post.
  • /chatops run auto_deploy status <merge-commit-of-cleanup-mr>
• Close the feature issue to indicate the feature will be released in the current milestone.
• If not already done, clean up the feature flag from all environments by running these chatops command in #production channel:
  • /chatops run feature delete <feature-flag-name> --dev
  • /chatops run feature delete <feature-flag-name> --staging
  • /chatops run feature delete <feature-flag-name>
• Close this rollout issue.