delete
Use this method to delete a group sticker set from a supergroup. The bot must be an administrator in the chat for this to work and must have the appropriate administrator rights. Use the field can_set_sticker_set optionally returned in getChat requests to check if the bot can use this method. Returns True on success.
Parameters
chat
Unique identifier for the target chat or username of the target supergroup (in the format @supergroupusername)