remove unsed imports

Author: scwf

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala

@@ -17,14 +17,14 @@
 
 package org.apache.spark.sql.catalyst.analysis
 
-import org.apache.spark.util.collection.OpenHashSet
 import org.apache.spark.sql.AnalysisException
 import org.apache.spark.sql.catalyst.CatalystConf
 import org.apache.spark.sql.catalyst.expressions._
 import org.apache.spark.sql.catalyst.plans.logical._
 import org.apache.spark.sql.catalyst.rules._
 import org.apache.spark.sql.catalyst.test.SimpleCatalystConf
 import org.apache.spark.sql.types._
+import org.apache.spark.util.collection.OpenHashSet
 
 /**
  * A trivial [[Analyzer]] with an [[EmptyCatalog]] and [[EmptyFunctionRegistry]]. Used for testing

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveQuerySuite.scala

@@ -29,7 +29,6 @@ import org.apache.hadoop.hive.conf.HiveConf.ConfVars
 import org.apache.spark.{SparkFiles, SparkException}
 import org.apache.spark.sql.{AnalysisException, DataFrame, Row}
 import org.apache.spark.sql.catalyst.plans.logical.Project
-import org.apache.spark.sql.functions._
 import org.apache.spark.sql.hive._
 import org.apache.spark.sql.hive.test.TestHive
 import org.apache.spark.sql.hive.test.TestHive._

sql/hive/src/test/scala/org/apache/spark/sql/hive/parquetSuites.scala

@@ -21,14 +21,12 @@ import java.io.File
 
 import org.scalatest.BeforeAndAfterAll
 
-import org.apache.spark.sql.{QueryTest, SQLConf, SaveMode}
+import org.apache.spark.sql.{QueryTest, SQLConf}
 import org.apache.spark.sql.catalyst.expressions.Row
 import org.apache.spark.sql.execution.{ExecutedCommand, PhysicalRDD}
 import org.apache.spark.sql.hive.execution.HiveTableScan
-import org.apache.spark.sql.hive.test.TestHive
 import org.apache.spark.sql.hive.test.TestHive._
 import org.apache.spark.sql.hive.test.TestHive.implicits._
-import org.apache.spark.sql.json.JSONRelation
 import org.apache.spark.sql.sources.{InsertIntoDataSource, LogicalRelation}
 import org.apache.spark.sql.parquet.{ParquetRelation2, ParquetTableScan}
 import org.apache.spark.sql.SaveMode