Remove some slots from custom types for consistency

#4239.

client/src/telethon/_impl/client/types/chat/channel.py

@@ -14,8 +14,6 @@ class Channel(Chat, metaclass=NoPublicConstructor):
     or from methods such as :meth:`telethon.Client.resolve_username`.
     """
 
-    __slots__ = ("_raw",)
-
     def __init__(
         self,
         raw: Union[types.Channel, types.ChannelForbidden],

client/src/telethon/_impl/client/types/chat/chat.py

@@ -11,8 +11,6 @@ class Chat(abc.ABC):
     This will either be a :class:`User`, :class:`Group` or :class:`Channel`.
     """
 
-    __slots__ = ()
-
     @property
     @abc.abstractmethod
     def id(self) -> int:

client/src/telethon/_impl/client/types/chat/group.py

@@ -21,8 +21,6 @@ class Group(Chat, metaclass=NoPublicConstructor):
     or from methods such as :meth:`telethon.Client.resolve_username`.
     """
 
-    __slots__ = ("_raw",)
-
     def __init__(
         self,
         client: Client,

client/src/telethon/_impl/client/types/chat/user.py

@@ -14,8 +14,6 @@ class User(Chat, metaclass=NoPublicConstructor):
     or from methods such as :meth:`telethon.Client.resolve_username`.
     """
 
-    __slots__ = ("_raw",)
-
     def __init__(self, raw: types.User) -> None:
         self._raw = raw
 

client/src/telethon/_impl/client/types/forward_info.py

@@ -11,8 +11,6 @@ class ForwardInfo(metaclass=NoPublicConstructor):
     This is also known as the forward header, as it's often displayed at the top of messages.
     """
 
-    __slots__ = ("_code", "_phone")
-
     def __init__(self, code: types.auth.SentCode, phone: str) -> None:
         self._code = code
         self._phone = phone

client/src/telethon/_impl/client/types/link_preview.py

@@ -11,8 +11,6 @@ class LinkPreview(metaclass=NoPublicConstructor):
     This comes from media attached to a message, and is automatically generated by Telegram.
     """
 
-    __slots__ = ("_code", "_phone")
-
     def __init__(self, code: types.auth.SentCode, phone: str) -> None:
         self._code = code
         self._phone = phone

client/src/telethon/_impl/client/types/message.py

@@ -42,8 +42,6 @@ class Message(metaclass=NoPublicConstructor):
     or from methods such as :meth:`telethon.Client.get_messages`.
     """
 
-    __slots__ = ("_client", "_raw", "_chat_map")
-
     def __init__(
         self, client: Client, message: abcs.Message, chat_map: Dict[int, Chat]
     ) -> None:

client/src/telethon/_impl/client/types/recent_action.py

@@ -14,8 +14,6 @@ class RecentAction(metaclass=NoPublicConstructor):
     You can obtain recent actions with methods such as :meth:`telethon.Client.get_admin_log`.
     """
 
-    __slots__ = ("_raw", "_chat_map")
-
     def __init__(
         self,
         event: abcs.ChannelAdminLogEvent,