Plugin cleanup and tweaks

plugins/youtube_download/yt_dlp/extractor/ninecninemedia.py

@@ -1,6 +1,3 @@
-# coding: utf-8
-from __future__ import unicode_literals
-
 from .common import InfoExtractor
 from ..utils import (
     float_or_none,
@@ -46,7 +43,6 @@ class NineCNineMediaIE(InfoExtractor):
         formats.extend(self._extract_mpd_formats(
             manifest_base_url + 'mpd', content_id,
             mpd_id='dash', fatal=False))
-        self._sort_formats(formats)
 
         thumbnails = []
         for image in (content.get('Images') or []):