Keep road poles even if they have no consumers

Author: paulapreuss

task_queue/grid_optimizer.py

@@ -1793,9 +1793,6 @@ def _associate_consumers_to_road_poles(self) -> pd.Index:
                 pole_counts[best_pole] += 1
                 assigned[c_idx] = best_pole
 
-        empty_poles = [p for p in road_pole_idxs if pole_counts[p] == 0]
-        self.nodes = self.nodes.drop(index=empty_poles)
-
         return consumers.index.difference(pd.Index(list(assigned.keys())))
 
     def _place_poles_with_roads(self):