[quant][graph] Add JIT passes for dynamic quant multi uses of quant node (#37125)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37125
For dynamic quant we need to replicate the choose_qparams and quantize function in addition to replicating dequant.
RemoveRedundantQuantizeOps pass checks for the choose_qparams - quant - dequant pattern in the graph and removes it if the node following it cannot be quantized using dynamic quantization.
Test Plan:
python test_quantize_script.py test_dynamic_quant_multi_uses
Imported from OSS
Differential Revision: D21283697
fbshipit-source-id: 70fa0abdaeb2cc2935149a941d93a7e8b28d61d3
