fix scala style

Author: AngersZhuuuu

sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/HiveTableScanExec.scala

@@ -27,7 +27,6 @@ import org.apache.hadoop.hive.serde.serdeConstants
 import org.apache.hadoop.hive.serde2.objectinspector._
 import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.ObjectInspectorCopyOption
 import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoUtils
-import org.apache.hadoop.hive.serde2.Deserializer
 
 import org.apache.spark.rdd.RDD
 import org.apache.spark.sql.SparkSession