Clean up imports.

Author: mbutrovich

spark/src/main/scala/org/apache/spark/sql/comet/operators.scala

@@ -19,7 +19,6 @@
 
 package org.apache.spark.sql.comet
 
-import java.util
 import java.util.Locale
 
 import scala.collection.mutable
@@ -30,7 +29,7 @@ import org.apache.spark.broadcast.Broadcast
 import org.apache.spark.rdd.RDD
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.expressions.{Ascending, Attribute, AttributeSet, Expression, ExpressionSet, Generator, NamedExpression, SortOrder}
-import org.apache.spark.sql.catalyst.expressions.aggregate.{AggregateExpression, AggregateMode, Final, Partial, PartialMerge}
+import org.apache.spark.sql.catalyst.expressions.aggregate._
 import org.apache.spark.sql.catalyst.optimizer.{BuildLeft, BuildRight, BuildSide}
 import org.apache.spark.sql.catalyst.plans._
 import org.apache.spark.sql.catalyst.plans.physical._
@@ -43,7 +42,7 @@ import org.apache.spark.sql.execution.exchange.ReusedExchangeExec
 import org.apache.spark.sql.execution.joins.{BroadcastHashJoinExec, HashJoin, ShuffledHashJoinExec, SortMergeJoinExec}
 import org.apache.spark.sql.execution.metric.{SQLMetric, SQLMetrics}
 import org.apache.spark.sql.internal.SQLConf
-import org.apache.spark.sql.types.{ArrayType, BooleanType, ByteType, DataType, DateType, DecimalType, DoubleType, FloatType, IntegerType, LongType, MapType, ShortType, StringType, TimestampNTZType}
+import org.apache.spark.sql.types._
 import org.apache.spark.sql.vectorized.ColumnarBatch
 import org.apache.spark.util.SerializableConfiguration
 import org.apache.spark.util.io.ChunkedByteBuffer
@@ -54,7 +53,7 @@ import com.google.protobuf.CodedOutputStream
 import org.apache.comet.{CometConf, CometExecIterator, CometRuntimeException, ConfigEntry}
 import org.apache.comet.CometSparkSessionExtensions.{isCometShuffleEnabled, withInfo}
 import org.apache.comet.parquet.CometParquetUtils
-import org.apache.comet.serde.{CometOperatorSerde, Compatible, Incompatible, OperatorOuterClass, SupportLevel, Unsupported}
+import org.apache.comet.serde._
 import org.apache.comet.serde.OperatorOuterClass.{AggregateMode => CometAggregateMode, Operator}
 import org.apache.comet.serde.QueryPlanSerde.{aggExprToProto, exprToProto, supportedSortType}
 import org.apache.comet.serde.operator.CometSink