What does this MR do?
This adds the disable_git_http_fetch_writes feature flag. It allows diabling some non-essential writes during git fetches hopefully improving the apdex of some of the git endpoints.
Related to gitlab-com/gl-infra/scalability#883 (moved)
Screenshots (strongly suggested)
Does this MR meet the acceptance criteria?
- [-] Changelog entry
- [-] Documentation (if required)
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Separation of EE specific content