Revert D26641599: [caffe2] update load_save_test.py to also verify the chunking behavior
Test Plan: revert-hammer
Differential Revision:
D26641599 (https://github.com/pytorch/pytorch/commit/cd9ac54ea75d4a530b6b9dccaaf1167cabafc789)
Original commit changeset: bccb0af157d8
fbshipit-source-id: 9fe35382876d19aefd16496bf8f920e12aa6f169
