feat: support literal for ARRAY top level

Author: comphead

spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala

@@ -2180,9 +2180,7 @@ object QueryPlanSerde extends Logging with CometExprShim {
     op match {
 
       // Fully native scan for V1
-      case scan: CometScanExec
-          if scan.scanImpl == CometConf.SCAN_NATIVE_DATAFUSION
-            || scan.scanImpl == CometConf.SCAN_NATIVE_ICEBERG_COMPAT =>
+      case scan: CometScanExec if scan.scanImpl == CometConf.SCAN_NATIVE_DATAFUSION =>
         val nativeScanBuilder = OperatorOuterClass.NativeScan.newBuilder()
         nativeScanBuilder.setSource(op.simpleStringWithNodeId())