Fix two compile errors introduced in merge

streaming/src/main/scala/org/apache/spark/streaming/Checkpoint.scala

@@ -64,7 +64,7 @@ class CheckpointWriter(conf: SparkConf, checkpointDir: String, hadoopConf: Confi
   val file = new Path(checkpointDir, "graph")
   val MAX_ATTEMPTS = 3
   val executor = Executors.newFixedThreadPool(1)
-  val compressionCodec = CompressionCodec.createCodec()
+  val compressionCodec = CompressionCodec.createCodec(conf)
   // The file to which we actually write - and then "move" to file
   val writeFile = new Path(file.getParent, file.getName + ".next")
   // The file to which existing checkpoint is backed up (i.e. "moved")

streaming/src/main/scala/org/apache/spark/streaming/scheduler/JobGenerator.scala

@@ -50,7 +50,7 @@ class JobGenerator(jobScheduler: JobScheduler) extends Logging {
   val clock = {
     val clockClass = ssc.sc.conf.getOrElse(
       "spark.streaming.clock", "org.apache.spark.streaming.util.SystemClock")
-    val clock = Class.forName(clockClass).newInstance().asInstanceOf[Clock]
+    Class.forName(clockClass).newInstance().asInstanceOf[Clock]
   }
   val timer = new RecurringTimer(clock, ssc.graph.batchDuration.milliseconds,
     longTime => eventProcessorActor ! GenerateJobs(new Time(longTime)))