Remove unnecessary extend from BroadcastHashJoinExec

Author: c21

sql/core/src/main/scala/org/apache/spark/sql/execution/joins/BroadcastHashJoinExec.scala

@@ -46,7 +46,7 @@ case class BroadcastHashJoinExec(
     left: SparkPlan,
     right: SparkPlan,
     isNullAwareAntiJoin: Boolean = false)
-  extends HashJoin with CodegenSupport {
+  extends HashJoin {
 
   if (isNullAwareAntiJoin) {
     require(leftKeys.length == 1, "leftKeys length should be 1")