Merge pull request #626 from stephenh/remove-add-if-no-port

Remove unused addIfNoPort.

core/src/main/scala/spark/Utils.scala

@@ -403,17 +403,6 @@ private object Utils extends Logging {
     hostPortParseResults.get(hostPort)
   }
 
-  def addIfNoPort(hostPort: String,  port: Int): String = {
-    if (port <= 0) throw new IllegalArgumentException("Invalid port specified " + port)
-
-    // This is potentially broken - when dealing with ipv6 addresses for example, sigh ... but then hadoop does not support ipv6 right now.
-    // For now, we assume that if port exists, then it is valid - not check if it is an int > 0
-    val indx: Int = hostPort.lastIndexOf(':')
-    if (-1 != indx) return hostPort
-
-    hostPort + ":" + port
-  }
-
   private[spark] val daemonThreadFactory: ThreadFactory =
     new ThreadFactoryBuilder().setDaemon(true).build()