cluster: Remove eachWorker, workerCount

unnecessary

doc/api/cluster.markdown

@@ -45,18 +45,6 @@ Boolean flags to determine if the current process is a master or a worker
 process in a cluster. A process `isMaster` if `process.env.NODE_WORKER_ID`
 is undefined.
 
-### cluster.eachWorker(cb)
-
-Synchronously iterates over all of the workers.
-
-    cluster.eachWorker(function(worker) {
-      console.log("worker pid=" + worker.pid);
-    });
-
-### cluster.workerCount()
-
-Returns the number of workers.
-
 ### Event: 'death'
 
 When any of the workers die the cluster module will emit the 'death' event.

lib/cluster.js

@@ -128,7 +128,7 @@ function handleWorkerMessage(worker, message) {
 }
 
 
-cluster.eachWorker = function(cb) {
+function eachWorker(cb) {
   // This can only be called from the master.
   assert(cluster.isMaster);
 
@@ -140,15 +140,6 @@ cluster.eachWorker = function(cb) {
 };
 
 
-cluster.workerCount = function() {
-  var c = 0;
-  cluster.eachWorker(function() {
-    c++;
-  });
-  return c;
-};
-
-
 cluster.fork = function() {
   // This can only be called from the master.
   assert(cluster.isMaster);