Removed unneeded lines in featurizers/__init__.py

        if verbosity is not None and i % log_every_n == 0:

          log("Featurizing %d / %d" % (i, len(mols)))

        if mol is not None:

          myfeatures = self._featurize(mol)

          features.append(myfeatures)

          #features.append(self._featurize(mol))

          features.append(self._featurize(mol))

        else:

          features.append(np.array([]))