feat: use signed weights in compile_torch_model

docs/user/howto/compiling_torch_model.md

@@ -9,7 +9,6 @@ A simple command can compile a torch model to its FHE counterpart. This process
 ```python
 from torch import nn
 import torch
-torch.manual_seed(0)
 class LogisticRegression(nn.Module):
     """LogisticRegression with Torch"""