remove leftover

diff --git a/music_assistant/models/player.py b/music_assistant/models/player.py
index 5e8a88fb24feb1c5fed89144e5b8db6657bf5bfe..9ca2d9602abbde0e6b1bc89ce9f564cd57f7a47d 100755 (executable)
--- a/music_assistant/models/player.py
+++ b/music_assistant/models/player.py
@@ -304,9 +304,8 @@ class Player(ABC):
 class PlayerGroup(Player):
     """Convenience Model for a player group with some additional helper methods."""
 
-    is_group: bool = True
+    _attr_is_group: bool = True
     _attr_group_childs: List[str] = []
-    _correct_progress = set()
 
     @property
     def volume_level(self) -> int: