[formatsort] Remove misuse of 'preference'

'preference' is to be used only when the format is better that ALL qualities of a lower preference irrespective of ANY sorting order the user requests. See deezer.py for correct use of this

In the older sorting method, `preference`, `quality` and `language_preference` were functionally almost equivalent. So these disparities doesn't really matter there

Also, despite what the documentation says, the default for `preference` was actually 0 and not -1. I have tried to correct this and also account for it when converting `preference` to `quality`

youtube_dlc/extractor/adobetv.py

@@ -66,7 +66,7 @@ class AdobeTVBaseIE(InfoExtractor):
                 if original_filename.startswith('s3://') and not s3_extracted:
                     formats.append({
                         'format_id': 'original',
-                        'preference': 1,
+                        'quality': 1,
                         'url': original_filename.replace('s3://', 'https://s3.amazonaws.com/'),
                     })
                     s3_extracted = True