chore: clean useless clone baesd on clippy (#7973)

Author: Weijun-H

datafusion/core/src/physical_optimizer/combine_partial_final_agg.rs

@@ -93,7 +93,7 @@ impl PhysicalOptimizerRule for CombinePartialFinalAggregate {
                                             input_agg_exec.filter_expr().to_vec(),
                                             input_agg_exec.order_by_expr().to_vec(),
                                             input_agg_exec.input().clone(),
-                                            input_agg_exec.input_schema().clone(),
+                                            input_agg_exec.input_schema(),
                                         )
                                         .ok()
                                         .map(Arc::new)

datafusion/core/src/physical_optimizer/enforce_distribution.rs

@@ -554,7 +554,7 @@ fn reorder_aggregate_keys(
                         agg_exec.filter_expr().to_vec(),
                         agg_exec.order_by_expr().to_vec(),
                         partial_agg,
-                        agg_exec.input_schema().clone(),
+                        agg_exec.input_schema(),
                     )?);
 
                     // Need to create a new projection to change the expr ordering back

datafusion/core/src/physical_optimizer/topk_aggregation.rs

@@ -75,7 +75,7 @@ impl TopKAggregation {
             aggr.filter_expr().to_vec(),
             aggr.order_by_expr().to_vec(),
             aggr.input().clone(),
-            aggr.input_schema().clone(),
+            aggr.input_schema(),
         )
         .expect("Unable to copy Aggregate!")
         .with_limit(Some(limit));

datafusion/physical-expr/src/array_expressions.rs

@@ -811,7 +811,7 @@ fn concat_internal(args: &[ArrayRef]) -> Result<ArrayRef> {
         }
     }
     // Assume all arrays have the same data type
-    let data_type = list_arrays[0].value_type().clone();
+    let data_type = list_arrays[0].value_type();
     let buffer = valid.finish();
 
     let elements = arrays

datafusion/substrait/src/logical_plan/producer.rs

@@ -326,7 +326,7 @@ pub fn to_substrait_rel(
                     left: Some(left),
                     right: Some(right),
                     r#type: join_type as i32,
-                    expression: join_expr.clone(),
+                    expression: join_expr,
                     post_join_filter: None,
                     advanced_extension: None,
                 }))),