http: use direct parameters instead

When parameter count is fixed, use literal Array instance is more
simply and avoid arguments leak also.

lib/_http_client.js

@@ -714,21 +714,15 @@ ClientRequest.prototype.setTimeout = function setTimeout(msecs, callback) {
   return this;
 };
 
-ClientRequest.prototype.setNoDelay = function setNoDelay() {
-  const argsLen = arguments.length;
-  const args = new Array(argsLen);
-  for (var i = 0; i < argsLen; i++)
-    args[i] = arguments[i];
-  this._deferToConnect('setNoDelay', args);
-};
-ClientRequest.prototype.setSocketKeepAlive = function setSocketKeepAlive() {
-  const argsLen = arguments.length;
-  const args = new Array(argsLen);
-  for (var i = 0; i < argsLen; i++)
-    args[i] = arguments[i];
-  this._deferToConnect('setKeepAlive', args);
+ClientRequest.prototype.setNoDelay = function setNoDelay(noDelay) {
+  this._deferToConnect('setNoDelay', [noDelay]);
 };
 
+ClientRequest.prototype.setSocketKeepAlive =
+    function setSocketKeepAlive(enable, initialDelay) {
+      this._deferToConnect('setKeepAlive', [enable, initialDelay]);
+    };
+
 ClientRequest.prototype.clearTimeout = function clearTimeout(cb) {
   this.setTimeout(0, cb);
 };