Revert "Run dynamo/test_dynamic_shapes serially (#92215)"
This reverts commit ea1007b89cb86551c80ddfd38db0bb3ade32140b.
Reverted https://github.com/pytorch/pytorch/pull/92215 on behalf of https://github.com/huydhn due to This is not needed anymore as https://github.com/pytorch/pytorch/issues/92196 has been root caused to test ordering
