Revert "http: make HEAD method to work with keep-alive"

This reverts commit 7afa533.

The change breaks clients like cURL.

Fixes: #38922

PR-URL: #38949
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mary Marchini <oss@mmarchini.me>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

lib/_http_outgoing.js

@@ -459,8 +459,7 @@ function _storeHeader(firstLine, headers) {
   }
 
   if (!state.contLen && !state.te) {
-    if (!this._hasBody && (this.statusCode === 204 ||
-                           this.statusCode === 304)) {
+    if (!this._hasBody) {
       // Make sure we don't end the 0\r\n\r\n at the end of the message.
       this.chunkedEncoding = false;
     } else if (!this.useChunkedEncodingByDefault) {