Remove `test_quantizer.py` and reuse one of its test in `test_quantization.py` (#27269)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/27269
Remove `test_quantizer.py`, add and rewrite one of the tests in `test_quantizer`
in `test_quantization.py`
The conv test is removed for now since conv pattern is still broken, we'll add another test
later
ghstack-source-id: 92869823
Test Plan:
python test/test_quantization.py
Imported from OSS
Differential Revision: D18182916
fbshipit-source-id: 325b5d8e877228d6a513e3ddf52c974479250d42