Summary:
https://github.com/facebook/rocksdb/issues/9961 broke format_compatible check because of `make clean`
referencing TEST_TMPDIR. The Makefile behavior seems reasonable to me,
so here's a fix in check_format_compatible.sh

Apparently I also included removing a redundant part of our CircleCI config.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9970

Test Plan: manual run: SHORT_TEST=1 ./tools/check_format_compatible.sh

Reviewed By: riversand963

Differential Revision: D36258172

Pulled By: pdillinger

fbshipit-source-id: d46507f04614e888b414ff23b88d040ae2b5c294