Revert "Merge branch 'ck3g-drop-default_enabled-from-Feature-enabled' into 'master'" [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

Reverts !56746 (merged)

There are several feature flags with the missing definition files which need to be added.

For now that creates issues like: gitlab-com/gl-infra/production#4091 (closed)

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Does this MR meet the acceptance criteria?

Conformity

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