staging: vt6655: remove filename from key.h

This patch resolves checkpatch's warning, "It's generally not useful to
have the filename in the file" for key.h.
Signed-off-by: Lucas Henneman <lucas.henneman@linaro.org>
Link: https://lore.kernel.org/r/20210723144340.15787-12-lucas.henneman@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/key.h

@@ -3,8 +3,6 @@
  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
  * All rights reserved.
  *
- * File: key.h
- *
  * Purpose: Implement functions for 802.11i Key management
  *
  * Author: Jerry Chen