Cleanup Feature Flag enable_secrets_provider_check_on_pre_assign_runner_checks

Summary

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

Owners

• Team: SCSS Pipeline Security
• Most appropriate slack channel to reach out to: g_scss_pipeline_security
• Best individual to reach out to: @jmallissery
• PM: Scott Hampton

Cleaning up the feature flag

• Create a merge request to remove enable_secrets_provider_check_on_pre_assign_runner_checks feature flag. Ask for review and merge it.
  • Remove unused class
  • Remove unused tests
  • Remove references to DropSecretsProviderNotFoundBuildsService class in tests
  • Remove all references to the feature flag enable_secrets_provider_check_on_pre_assign_runner_checks from the codebase.
  • Remove the YAML definition file for the feature from the repository - ee/config/feature_flags/gitlab_com_derisk/enable_secrets_provider_check_on_pre_assign_runner_checks.yml
  • Create a changelog entry.
• Ensure that the cleanup MR has been deployed to both production and canary by running /chatops run auto_deploy status <merge-commit-of-cleanup-mr>
• 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 --pre --staging --staging-ref --production
• Close this issue.