[southparknl] Fix test to match playlist tests

youtube_dl/extractor/southpark.py

@@ -55,9 +55,5 @@ class SouthParkNlIE(SouthParkIE):
 
     _TESTS = [{
         'url': 'http://www.southpark.nl/full-episodes/s18e06-freemium-isnt-free',
-        'info_dict': {
+        'playlist_count': 4,
-            'id': 'c56b9a1f-0e42-4942-89e0-8e721d814c5c',
-            'ext': 'mp4',
-            'title': 'South Park 1806: Freemium Isn\'t Free - Act 3',
-        },
     }]