http: explain the possibilty of refactor unused argument

PR-URL: https://github.com/nodejs/node/pull/37275
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

lib/_http_incoming.js

@@ -155,6 +155,10 @@ IncomingMessage.prototype.setTimeout = function setTimeout(msecs, callback) {
 // argument adaptor frame creation inside V8 in case that number of actual
 // arguments is different from expected arguments.
 // Ref: https://bugs.chromium.org/p/v8/issues/detail?id=10201
+// NOTE: Argument adapt frame issue might be solved in V8 engine v8.9.
+// Refactoring `n` out might be possible when V8 is upgraded to that
+// version.
+// Ref: https://v8.dev/blog/v8-release-89
 IncomingMessage.prototype._read = function _read(n) {
   if (!this._consuming) {
     this._readableState.readingMore = false;