Remove fake inputs from control flow (#95988)
Previously running make_fx with tracing_mode="symbolic" resulted in `RuntimeError: Creating a new Tensor subclass FakeTensor but the raw Tensor object is already associated to a python object of type FakeTensor`. This is probably due to there existing multiple FakeTensorModes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/95988
Approved by: https://github.com/tugsbayasgalan, https://github.com/zhxchen17
