Removing accidental file

core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala

@@ -136,8 +136,7 @@ private[spark] class DriverRunner(
   }
 
   /** Continue launching the supplied command until it exits zero or is killed. */
-  def runCommandWithRetry(command: Seq[String], envVars: Seq[(String, String)], baseDir: File)
-      : Unit = {
+  def runCommandWithRetry(command: Seq[String], envVars: Seq[(String, String)], baseDir: File) {
     // Time to wait between submission retries.
     var waitSeconds = 1
     var cleanExit = false

core/src/main/scala/org/apache/spark/deploy/worker/DriverWrapper.scala

-package org.apache.spark.deploy.worker
-
-object DriverWrapper {
-  def main(args: Array[String]) {
-    val c = Console.readChar()
-    println(s"Char: $c")
-  }
-}