fx quant: remove unnecessary quants arguments (#57399)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57399
There were a couple of functions which took `quants` as arguments
without using them, probably left over from after past refactors.
Cleaning this up to improve code readability.
Test Plan:
```
python test/test_quantization.py TestQuantizeFx
python test/test_quantization.py TestQuantizeFxOps
```
Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D28132413
fbshipit-source-id: 636b146c0b5ef0caea9c4b539e245de245d48c49
