Remove outdated note regarding ephemeral messages

Author: anand2312

discord_slash/context.py

@@ -134,9 +134,6 @@ async def send(self,
         """
         Sends response of the slash command.
 
-        .. note::
-            - Param ``hidden`` doesn't support embed and file.
-
         .. warning::
             - Since Release 1.0.9, this is completely changed. If you are migrating from older version, please make sure to fix the usage.
             - You can't use both ``embed`` and ``embeds`` at the same time, also applies to ``file`` and ``files``.