Summary:
The CI systems other than CircleCI are almost always in a failing state. Since CircleCI covers linux, macos, and windows, we can remove the others.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11354

Reviewed By: hx235

Differential Revision: D44774627

Pulled By: ajkr

fbshipit-source-id: c83b298ec5afe4ea410744eda6cc98fc6a3365f1