diff --git a/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/rule/permanentview/PermanentViewMarker.scala b/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/rule/permanentview/PermanentViewMarker.scala
index 5ef8f4a748d..dd198c8b46a 100644
--- a/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/rule/permanentview/PermanentViewMarker.scala
+++ b/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/rule/permanentview/PermanentViewMarker.scala
@@ -21,13 +21,7 @@ import org.apache.spark.sql.catalyst.catalog.CatalogTable
 import org.apache.spark.sql.catalyst.expressions.Attribute
 import org.apache.spark.sql.catalyst.plans.logical.{LeafNode, LogicalPlan}
 
-import org.apache.kyuubi.plugin.spark.authz.util.WithInternalChild
-
-case class PermanentViewMarker(child: LogicalPlan, catalogTable: CatalogTable) extends LeafNode
-  with WithInternalChild {
+case class PermanentViewMarker(child: LogicalPlan, catalogTable: CatalogTable) extends LeafNode {
 
   override def output: Seq[Attribute] = child.output
-
-  override def withNewChildInternal(newChild: LogicalPlan): LogicalPlan =
-    copy(child = newChild)
 }
diff --git a/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/util/WithInternalChildren.scala b/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/util/WithInternalChildren.scala
index 582b34abee4..76598c3c0f0 100644
--- a/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/util/WithInternalChildren.scala
+++ b/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/util/WithInternalChildren.scala
@@ -24,10 +24,6 @@ trait WithInternalChildren {
   def withNewChildrenInternal(newChildren: IndexedSeq[LogicalPlan]): LogicalPlan
 }
 
-trait WithInternalChild {
-  def withNewChildInternal(newChild: LogicalPlan): LogicalPlan
-}
-
 trait WithInternalExpressionChild {
   def withNewChildInternal(newChild: Expression): Expression
 }