fix install error

Author: jiyong-lee-dev

core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala

@@ -27,7 +27,6 @@ import scala.util.{Failure, Success}
 import scala.util.control.NonFatal
 
 import io.netty.util.internal.PlatformDependent
-import org.json4s.DefaultFormats
 
 import org.apache.spark._
 import org.apache.spark.TaskState.TaskState

pom.xml

@@ -3679,6 +3679,7 @@
                   <arg>-Wconf:msg=Auto-application to \`\(\)\` is deprecated:s</arg>
                   <arg>-Wconf:msg=method with a single empty parameter list overrides method without any parameter list:s</arg>
                   <arg>-Wconf:msg=method without a parameter list overrides a method with a single empty one:s</arg>
+                  <arg>-Wconf:msg=legacy-binding:s</arg>
                   <!--
                     SPARK-35574 Prevent the recurrence of compilation warnings related to
                     `procedure syntax is deprecated`