[cleanup] Misc (#14965)

Closes #14789
Authored by: bashonly, seproDev

Co-authored-by: sepro <sepro@sepr0.com>

yt_dlp/extractor/abc.py

@@ -321,6 +321,8 @@ def tokenize_url(url, token):
                 entry_protocol='m3u8_native', m3u8_id='hls', fatal=False)
             if formats:
                 break
+        else:
+            formats = []
 
         subtitles = {}
         src_vtt = stream.get('captions', {}).get('src-vtt')

yt_dlp/extractor/tubetugraz.py

@@ -151,7 +151,6 @@ class TubeTuGrazIE(TubeTuGrazBaseIE):
                 'title': '#6 (23.11.2017)',
                 'episode': '#6 (23.11.2017)',
                 'series': '[INB03001UF] Einführung in die strukturierte Programmierung',
-                'creator': 'Safran C',
                 'duration': 3295818,
                 'series_id': 'b1192fff-2aa7-4bf0-a5cf-7b15c3bd3b34',
                 'creators': ['Safran C'],