Revert "[quant][test] Fix broken PT2 import, add warnings (#102644)"
This reverts commit f18b9f86ba1343270d790d2b66e1903af1a7df5c.
Reverted https://github.com/pytorch/pytorch/pull/102644 on behalf of https://github.com/facebook-github-bot due to Diff reverted internally ([comment](https://github.com/pytorch/pytorch/pull/102644#issuecomment-1572818537))