refactoring TestQuantizeScript (#39677)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/39677
Test Plan:
Moved a test class suite between files, wanted to have same functionality (simple code refactor) so tested to make sure the test output was the same before/after the refactor.
Image below shows the output of TestGraphModePostTrainingStatic before refactor
{F239676498}
This image shows the output of TestQuantizeScript (renamed version that is in test_quantize_script.py instead of test_quantize.py)
{F239676509}
Differential Revision: D21940638
Pulled By: edmundw314
fbshipit-source-id: 54160a5151aadf3a34bdac2bcaeb52904e6653ed
