mainboard/[a-f]*: Remove copyright notices

They're listed in AUTHORS and often incorrect anyway, for example:
- What's a "Copyright $year-present"?
- Which incarnation of Google (Inc, LLC, ...) is the current
  copyright holder?
- People sometimes have their editor auto-add themselves to files even
  though they only deleted stuff
- Or they let the editor automatically update the copyright year,
  because why not?
- Who is the copyright holder "The coreboot project Authors"?
- Or "Generated Code"?

Sidestep all these issues by simply not putting these notices in
individual files, let's list all copyright holders in AUTHORS instead
and use the git history to deal with the rest.

Change-Id: I57fc98788bb47df16d6aedd0f0701e9991801743
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39606
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>

1 files changed, 0 insertions, 1 deletions

diff --git a/src/mainboard/amd/persimmon/bootblock.c b/src/mainboard/amd/persimmon/bootblock.c
index 6cd9e2a59a..4afb0970c5 100644
--- a/src/mainboard/amd/persimmon/bootblock.c
+++ b/src/mainboard/amd/persimmon/bootblock.c
@@ -1,7 +1,6 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by