resolve the comments and build failed fix

Author: JkSelf

sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/OptimizeLocalShuffleReader.scala

@@ -57,14 +57,6 @@ object BroadcastJoinWithShuffleRight {
  */
 case class OptimizeLocalShuffleReader(conf: SQLConf) extends Rule[SparkPlan] {
 
-  def canUseLocalShuffleReaderProbeLeft(join: BroadcastHashJoinExec): Boolean = {
-    join.buildSide == BuildRight &&  ShuffleQueryStageExec.isShuffleQueryStageExec(join.left)
-  }
-
-  def canUseLocalShuffleReaderProbeRight(join: BroadcastHashJoinExec): Boolean = {
-    join.buildSide == BuildLeft &&  ShuffleQueryStageExec.isShuffleQueryStageExec(join.right)
-  }
-
   override def apply(plan: SparkPlan): SparkPlan = {
     if (!conf.getConf(SQLConf.OPTIMIZE_LOCAL_SHUFFLE_READER_ENABLED)) {
       return plan

sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/ReduceNumShufflePartitions.scala

@@ -27,7 +27,6 @@ import org.apache.spark.sql.catalyst.expressions.Attribute
 import org.apache.spark.sql.catalyst.plans.physical.{Partitioning, UnknownPartitioning}
 import org.apache.spark.sql.catalyst.rules.Rule
 import org.apache.spark.sql.execution.{ShuffledRowRDD, SparkPlan, UnaryExecNode}
-import org.apache.spark.sql.execution.adaptive.{LocalShuffleReaderExec, QueryStageExec, ReusedQueryStageExec, ShuffleQueryStageExec}
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.util.ThreadUtils