Replace rails console note

What does this MR do?

Reverts changes from !82926 (merged) . The description points to a comment which mentions the next section on doing a manual export which is not related to the workaround.

Replaces note with a different warning that LFS is not supported.

Related issues

Prompted by customer ticket (internal) https://gitlab.zendesk.com/agent/tickets/277906 where we're helping them with workaround 2

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