Removed mistakenly included check for the group type in chat.photo (#133)

Author: MarcoBuster

botogram/objects/chats.py

@@ -364,10 +364,6 @@ def pin_message(self, message, notify=True):
     @mixins._require_api
     def photo(self):
         """Get the current chat photo small and big ids"""
-        if self.type not in ("supergroup", "channel"):
-            raise RuntimeError(
-                "You can only get the photo in a supergroup or a channel")
-
         if hasattr(self, "_cache_photo"):
             return self._cache_photo