Revert "Try running 24 tests at a time"
Revert "Try running 24 tests at a time"

This reverts commit 4495bcf91ae753fda4c41421b9b48aa0f3a091d5.

berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud