AUTHORS, util/: Drop individual copyright notices

We have the git history which is a more reliable librarian.

Change-Id: Idbcc5ceeb33804204e56d62491cb58146f7c9f37
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41175
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: ron minnich <rminnich@gmail.com>

util/nvramtool/cbfs.h

@@ -1,7 +1,5 @@
 /* This file is part of the coreboot project. */
 /*
- * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
- *
  * This file is dual-licensed. You can choose between:
  *   - The GNU GPL, version 2, as published by the Free Software Foundation
  *   - The revised BSD license (without advertising clause)