Turn on named tensors for all builds (#29603)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29603
Previously, named tensors were off for the internal caffe2 xplat builds.
However, we have since excised the caffe2 xplat build's dependencies on
PyTorch. This makes it so that we can turn on named tensors for all
builds.
Test Plan: - Wait for CI
Differential Revision: D18439084
Pulled By: zou3519
fbshipit-source-id: f1cc405d0ce9ffe991eff1bbb80575ce87c02d4a
