[compat, networking] Deprecate old functions (#2861)

Authored by: coletdjnz, pukkandan

yt_dlp/extractor/threeqsdn.py

@@ -1,5 +1,5 @@
 from .common import InfoExtractor
-from ..compat import compat_HTTPError
+from ..networking.exceptions import HTTPError
 from ..utils import (
     determine_ext,
     ExtractorError,
@@ -90,7 +90,7 @@ class ThreeQSDNIE(InfoExtractor):
             config = self._download_json(
                 url.replace('://playout.3qsdn.com/', '://playout.3qsdn.com/config/'), video_id)
         except ExtractorError as e:
-            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 401:
+            if isinstance(e.cause, HTTPError) and e.cause.status == 401:
                 self.raise_geo_restricted()
             raise