net: remove misleading comment

The allowHalfOpen comment was added in commit 8a3befa ("net: Refactor to use streams2") from 2012 but it wasn't true even then as far as I can tell: Node.js simply always does a shutdown(2) first. It is true that streams2 withholds the 'end' event when allowHalfOpen is true but the comment is about a callback that hangs off the 'finish' event that is emitted after calling `socket.end()`. PR-URL: #11573 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Colin Ihrig <[email protected]>

Author: bnoordhuis

lib/net.js

@@ -208,10 +208,6 @@ Socket.prototype._unrefTimer = function _unrefTimer(){
 
 // the user has called .end(), and all the bytes have been
 // sent out to the other side.
-// If allowHalfOpen is false, or if the readable side has
-// ended already, then destroy.
-// If allowHalfOpen is true, then we need to do a shutdown,
-// so that only the writable side will be cleaned up.
 functiononSocketFinish(){
 // If still connecting - defer handling 'finish' until 'connect' will happen
 if(this.connecting){