[jit] PyTorchStreamReader::getAllRecord should omit archive name prefix (#43317)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43317
Previous version was returning the path with a prefix so subsequent `getRecord` would fail.
There's only one place in PyTorch codebase that uses this function (introduced in https://github.com/pytorch/pytorch/pull/29339 ) and it's unlikely that anyone else is using it - it's not a public API anyway.
Test Plan: unittest
Reviewed By: houseroad
Differential Revision: D23235241
fbshipit-source-id: 6f7363e6981623aa96320f5e39c54e65d716240b
