Plugin cleanup and tweaks

plugins/youtube_download/yt_dlp/extractor/ign.py

@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 import re
 
 from .common import InfoExtractor
@@ -104,8 +102,6 @@ class IGNIE(IGNBaseIE):
                 'url': mezzanine_url,
             })
 
-        self._sort_formats(formats)
-
         thumbnails = []
         for thumbnail in (video.get('thumbnails') or []):
             thumbnail_url = thumbnail.get('url')