fix docs

Change-Id: I3409810878f16515a7ddb8f9bf352c2a48573ee9

satella/files.py

@@ -492,7 +492,7 @@ class AutoflushFile(Proxy[io.FileIO]):
 
     @is_closed_getter
     @close_file_after
-    def close(self) -> None:  # pylint: disable=unused-argument
+    def close(self) -> None:
         """
         Closes the file.
         """