wip: remove dead code

Author: matthewgapp

datafusion/core/src/physical_optimizer/enforce_distribution.rs

@@ -1114,30 +1114,6 @@ fn remove_dist_changing_operators(
     })
 }
 
-// /// Changes each child of the `dist_context.plan` such that they no longer
-// /// use order preserving variants, if no ordering is required at the output
-// /// of the physical plan (there is no global ordering requirement by the query).
-// fn update_plan_to_remove_unnecessary_final_order(
-//     dist_context: DistributionContext,
-// ) -> Result<Arc<dyn ExecutionPlan>> {
-//     let DistributionContext {
-//         plan,
-//         distribution_onwards,
-//         ..
-//     } = dist_context;
-//     let new_children = izip!(plan.children(), distribution_onwards)
-//         .map(|(mut child, mut dist_onward)| {
-//             replace_order_preserving_variants(&mut child, &mut dist_onward)?;
-//             Ok(child)
-//         })
-//         .collect::<Result<Vec<_>>>()?;
-//     if !new_children.is_empty() {
-//         plan.with_new_children(new_children)
-//     } else {
-//         Ok(plan)
-//     }
-// }
-
 /// Updates the physical plan `input` by using `dist_onward` replace order preserving operator variants
 /// with their corresponding operators that do not preserve order. It is a wrapper for `replace_order_preserving_variants_helper`
 fn replace_order_preserving_variants(