Remove duplicate file checks

discord/interactions.py

@@ -570,21 +570,6 @@ async def send_message(
             elif not all(isinstance(file, File) for file in files):
                 raise InvalidArgument('files parameter must be a list of File')
 
-        if file is not None and files is not None:
-            raise InvalidArgument('cannot pass both file and files parameter to send()')
-
-        if file is not None:
-            if not isinstance(file, File):
-                raise InvalidArgument('file parameter must be File')
-            else:
-                files = [file]
-
-        if files is not None:
-            if len(files) > 10:
-                raise InvalidArgument('files parameter must be a list of up to 10 elements')
-            elif not all(isinstance(file, File) for file in files):
-                raise InvalidArgument('files parameter must be a list of File')
-
         parent = self._parent
         adapter = async_context.get()
         try:
@@ -840,4 +825,4 @@ async def inner_call(delay: float = delay):
 
             asyncio.create_task(inner_call())
         else:
-            await self._state._interaction.delete_original_message()
+            await self._state._interaction.delete_original_message()