Remove outdated TODOs

Author: andrewor14

core/src/main/scala/org/apache/spark/deploy/Client.scala

@@ -146,7 +146,7 @@ object Client {
     }
 
     val conf = new SparkConf()
-    val port = conf.getInt("spark.standalone.client.port", 0) // TODO: document this
+    val port = conf.getInt("spark.standalone.client.port", 0)
     val driverArgs = new ClientArguments(args)
 
     if (!driverArgs.logLevel.isGreaterOrEqual(Level.WARN)) {

core/src/main/scala/org/apache/spark/executor/Executor.scala

@@ -84,7 +84,7 @@ private[spark] class Executor(
   // Initialize Spark environment (using system properties read above)
   private val env = {
     if (!isLocal) {
-      val port = conf.getInt("spark.executor.env.port", 0) // TODO: document this
+      val port = conf.getInt("spark.executor.env.port", 0)
       val _env = SparkEnv.create(conf, executorId, slaveHostname, port,
         isDriver = false, isLocal = false)
       SparkEnv.set(_env)