[minor doc] Correct comment

Author: mmalecki

Diff for: lib/node-http-proxy/http-proxy.js

@@ -438,7 +438,6 @@ HttpProxy.prototype.proxyWebSocketRequest = function (req, socket, head, buffer)
   // Helper function for setting appropriate socket values:
   // 1. Turn of all bufferings
   // 2. For server set KeepAlive
-  // 3. For client set encoding
   //
   function _socket(socket, keepAlive) {
     socket.setTimeout(0);