Revert "Force synced KJT to trace unbacked SymInt (#108960)"
This reverts commit f9a250c35bd061e2e6f4c2d92e2b1b16390e8636.
Reverted https://github.com/pytorch/pytorch/pull/108960 on behalf of https://github.com/facebook-github-bot due to Diff reverted internally ([comment](https://github.com/pytorch/pytorch/pull/108960#issuecomment-1715850779))
