Revert "http: do not leak error listeners"

This reverts commit 736a7d8.

The patch attempted to fix an issue, signaled by a warning, caused by
an invalid API usage. However it introduced a behavior change that is
breaking userland modules.

It is a user error, so restore the original behavior and have the user
investigate and fix the issue in their code.

Refs: #43587 (comment)
Refs: #43587 (comment)
PR-URL: #44921
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Beth Griggs <bethanyngriggs@gmail.com>
Reviewed-By: Tierney Cyren <hello@bnb.im>

lib/_http_server.js

@@ -809,10 +809,7 @@ const requestHeaderFieldsTooLargeResponse = Buffer.from(
 function socketOnError(e) {
   // Ignore further errors
   this.removeListener('error', socketOnError);
-
-  if (this.listenerCount('error') === 0) {
-    this.on('error', noop);
-  }
+  this.on('error', noop);
 
   if (!this.server.emit('clientError', e, this)) {
     // Caution must be taken to avoid corrupting the remote peer.