去除初始化问题！

plugins/group_add/main.py

@@ -39,10 +39,6 @@ class GroupAddPlugin(MessagePluginInterface):
 
     def __init__(self):
         super().__init__()
-        self.wcf = None
-        self.gbm = None
-        self.LOG = None
-        self.enable = True
 
     def initialize(self, context: Dict[str, Any]) -> bool:
         """初始化插件"""