Drop trailing semicolon

Author: tedyu

external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaTestUtils.scala

@@ -33,7 +33,7 @@ import kafka.server.{KafkaConfig, KafkaServer}
 import kafka.server.checkpoints.OffsetCheckpointFile
 import kafka.utils.ZkUtils
 import kafka.zk.KafkaZkClient
-import org.apache.kafka.clients.CommonClientConfigs;
+import org.apache.kafka.clients.CommonClientConfigs
 import org.apache.kafka.clients.admin.{AdminClient, CreatePartitionsOptions, NewPartitions}
 import org.apache.kafka.clients.consumer.KafkaConsumer
 import org.apache.kafka.clients.producer._