pytorch

b360d663 - Revert "Add environment parse function that supports default value (#85563)"

Revert "Add environment parse function that supports default value (#85563)" This reverts commit 784f4ba1ce16996d497fae2fb107425b3bbeb71b. Reverted https://github.com/pytorch/pytorch/pull/85563 on behalf of https://github.com/huydhn due to Fail test_DistributedDataParallel (main.TestDistBackendWithSpawn)