[TensorExpr] Remove stale docs from DesignOverview.md. (#55000)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/55000
Test Plan: Imported from OSS
Reviewed By: bertmaher, pbelevich
Differential Revision: D27446413
Pulled By: ZolotukhinM
fbshipit-source-id: 4874dcd992fd4bc60ade008c59822194d39792d7
Author
Mikhail Zolotukhin
