Merge bitcoin/bitcoin#27418: test: Remove windows workaround in authproxy

fa584b4 test: Remove windows workaround in authproxy (MarcoFalke)

Pull request description:

  I wonder if the windows issues have also been fixed by bumping the server timeout in commit 88134fc.

  I guess the only way to find out and try.

  Note that even with the workaround, the issue would still happen occasionally: bitcoin/bitcoin#18623

ACKs for top commit:
  fanquake:
    ACK fa584b4

Tree-SHA512: 1c633d7d8b54fa47bb851457d48b7d80bf6d6ea353db80610231e0bd385061b795f97ea2b64022fa24e79b4d7dcb5e947e0d637da228f10998e950d84b920878

Author: fanquake

test/functional/test_framework/authproxy.py

@@ -39,7 +39,6 @@
 import http.client
 import json
 import logging
-import os
 import socket
 import time
 import urllib.parse
@@ -100,11 +99,6 @@ def _request(self, method, path, postdata):
                    'User-Agent': USER_AGENT,
                    'Authorization': self.__auth_header,
                    'Content-type': 'application/json'}
-        if os.name == 'nt':
-            # Windows somehow does not like to re-use connections
-            # TODO: Find out why the connection would disconnect occasionally and make it reusable on Windows
-            # Avoid "ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine"
-            self._set_conn()
         self.__conn.request(method, path, postdata, headers)
         return self._get_response()