Revert "Move/Fix FakeTensor logic for detecting multiple fake modes (#97186)"
This reverts commit 8a057c445d372e17501c1257e51f47ab7878b371.
Reverted https://github.com/pytorch/pytorch/pull/97186 on behalf of https://github.com/huydhn due to This breaks ONNX test in trunk and it looks like a landrace as the CI signal is green
