Remove copyright header from JSON file.

The copyright notice was added by mistake to a json file,
remove the notice again.

Change-Id: Ic822b224713191ea55b5c11e49cedc2504abe1b4
diff --git a/sp_layout.json b/sp_layout.json
index c4c02b5..4350e8c 100644
--- a/sp_layout.json
+++ b/sp_layout.json
@@ -1,9 +1,3 @@
-/*
- * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
 {
 	"op-tee" : {
 		"image": "../optee_os/out/arm-plat-vexpress/core/tee-pager_v2.bin",