Delete outdated comments

Author: pnkraemer

probdiffeq/impl/impl.py

@@ -29,12 +29,6 @@ def __eq__(self, other):
 
 def choose(which: str, /, *, tcoeffs_like) -> FactImpl:
     """Choose a state-space model implementation."""
-    # u0 = np.asarray(tcoeffs_like[0])
-    # if u0.ndim != 1:
-    #     msg = "'tcoeffs' expected to have shape=(d,), "
-    #     msg += f"but shape={u0.shape} received."
-    #     raise ValueError(msg)
-
     if which == "dense":
         return _select_dense(tcoeffs_like=tcoeffs_like)
     if which == "isotropic":