Draft: Clean up abandoned FF geo_proxy_fetch_direct_to_primary_with_options

What does this MR do and why?

IN DRAFT UNTIL GITLAB_SHELL_VERSION can be bumped to include Clean up abandoned FF geo_proxy_fetch_direct_to... (gitlab-shell!1329 - merged)

Clean up abandoned FF geo_proxy_fetch_direct_to_primary_with_options.

Because the experiment was aborted.

References

Related to gitlab-shell!1329 (merged)

How to set up and validate locally

No change in behavior expected during: Git fetch over SSH from a secondary Geo site when its local copy of the Git repo is out-of-date.

MR acceptance checklist

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