Fix video unavailable blockage by switching back to ios client

Credit to @alive4ever

Fixes #221

youtube/watch.py

@@ -337,7 +337,6 @@ def _add_to_error(info, key, additional_message):
 def fetch_player_response(client, video_id):
     return util.call_youtube_api(client, 'player', {
         'videoId': video_id,
-        'params': 'CgIQBg',
     })
 
 def fetch_watch_page_info(video_id, playlist_id, index):
@@ -367,7 +366,7 @@ def extract_info(video_id, use_invidious, playlist_id=None, index=None):
         gevent.spawn(fetch_watch_page_info, video_id, playlist_id, index),
 
 
-        gevent.spawn(fetch_player_response, 'android-test-suite', video_id)
+        gevent.spawn(fetch_player_response, 'ios', video_id)
     )
     gevent.joinall(tasks)
     util.check_gevent_exceptions(*tasks)