Dont call finalize() on Lisflood.bmi when Lisflood.finalize() is call…

…ed. Only perform container clean up

Refs #257

src/ewatercycle/models/lisflood.py

@@ -306,6 +306,11 @@ def parameters(self) -> Iterable[Tuple[str, Any]]:
             ("end_time", self._end.strftime("%Y-%m-%dT%H:%M:%SZ")),
         ]
 
+    def finalize(self) -> None:
+        """Perform tear-down tasks for the model."""
+        # Finalize function of bmi class of lisflood is kaput, so not calling it
+        del self.bmi
+
 
 # TODO it needs fix regarding forcing
 # def reindex_forcings(