pytorch

61457671 - [quant][fx][be] Remove _input_output_observed from backend_config (#92589)

[quant][fx][be] Remove _input_output_observed from backend_config (#92589) Summary: This is no longer needed, we can use dtype to decide whether an observer is needed or not Test Plan: python test/test_quantization.py TestQuantizeFx python test/test_quantization.py TestQuantizeFxOps Reviewers: Subscribers: Tasks: Tags: Pull Request resolved: https://github.com/pytorch/pytorch/pull/92589 Approved by: https://github.com/jcaip