torch/deadlockdetection: add TORCH_DISABLE_DEADLOCK_DETECTION env for use with torch deploy (#77270)
Summary:
Currently there's an #ifdef USE_DEPLOY to disable deadlock detection in torch for torch deploy. We want to be able to link against binary distributions of PyTorch so we need to have a way to disable deadlock detection at runtime.
https://github.com/pytorch/pytorch/blob/55f55a4cf6cc50cde9e8e8369d92847ca85b23da/torch/csrc/autograd/python_variable.cpp#L1017
Test Plan: buck test //caffe2/c10/test:util_base_test
Differential Revision: D36303256
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77270
Approved by: https://github.com/PaliC
