* Remove check that is impossible to fail in jac

Author: ValerianRey

src/torchjd/autojac/_transform/jac.py

@@ -44,12 +44,6 @@ def _differentiate(self, jac_outputs: Sequence[Tensor]) -> tuple[Tensor, ...]:
             return tuple()
 
         n_outputs = len(outputs)
-        if len(jac_outputs) != n_outputs:
-            raise ValueError(
-                "Parameters `outputs` and `jac_outputs` should be sequences of the same length."
-                f"Found `len(outputs) = {n_outputs}` and `len(jac_outputs) = {len(jac_outputs)}`."
-            )
-
         if n_outputs == 0:
             return tuple(
                 [