Fix: Add back whitelines in imports

Author: karuppayya

sql/core/src/main/scala/org/apache/spark/sql/internal/SharedState.scala

@@ -22,11 +22,13 @@ import java.util.Locale
 
 import scala.reflect.ClassTag
 import scala.util.control.NonFatal
+
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.fs.FsUrlStreamHandlerFactory
+
 import org.apache.spark.{SparkConf, SparkContext, SparkException}
 import org.apache.spark.internal.Logging
-import org.apache.spark.sql.{SQLContext, SparkSession}
+import org.apache.spark.sql.SparkSession
 import org.apache.spark.sql.catalyst.catalog._
 import org.apache.spark.sql.execution.CacheManager
 import org.apache.spark.sql.execution.ui.{SQLAppStatusListener, SQLAppStatusStore, SQLTab}