add http headers at the root of the info_dict

simplify structure

yt_dlp/extractor/anigamer.py

@@ -86,16 +86,14 @@ class AniGamerIE(InfoExtractor):
             raise ExtractorError('Invalid device id!')
         # TODO: handle more error codes
         src = m3u8_info['src']
-        formats = self._extract_m3u8_formats(src, video_id, 'mp4', headers={
-            'Origin': 'https://ani.gamer.com.tw',
-            **self.geo_verification_headers(),
-        })
-        for fmt in formats:
-            http_headers = fmt.get('http_headers')
-            http_headers['Origin'] = 'https://ani.gamer.com.tw'
-            fmt['http_headers'] = http_headers
         return {
             **metadata,
             'id': video_id,
-            'formats': formats,
+            'formats': self._extract_m3u8_formats(src, video_id, 'mp4', headers={
+                'Origin': 'https://ani.gamer.com.tw',
+                **self.geo_verification_headers(),
+            }),
+            'http_headers': {
+                'Origin': 'https://ani.gamer.com.tw',
+            },
         }