Revert "[fx] Better replacements finder in subgraph rewriter (#100556)"
This reverts commit 9842d1ef94e84088735e143bffb238cb5eda7446.
Reverted https://github.com/pytorch/pytorch/pull/100556 on behalf of https://github.com/izaitsevfb due to Reverting temporarily to unblock diff train, see D45743510 and #100610 ([comment](https://github.com/pytorch/pytorch/pull/100556#issuecomment-1548934932))
