pytorch

b4471148 - [quant][core][gpu][improvement] Removed linear_output and set output tensors as virtual in quantized cudnn linear op

[quant][core][gpu][improvement] Removed linear_output and set output tensors as virtual in quantized cudnn linear op Summary: See https://github.com/pytorch/pytorch/pull/76787. Same idea applied here but for `linear_output`. Test plan: ``` python test/test_quantization.py --k test_qlinear_cudnn ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/77518 Approved by: https://github.com/jerryzh168