Replace the confidential and proprietary notice with Apache 2.0 licen…

…se (#139)

Signed-off-by: Andy Fingerhut <andy_fingerhut@alum.wustl.edu>

src/targets/dummy/tdi_dummy_table.hpp

@@ -1,22 +1,6 @@
 /*******************************************************************************
- * BAREFOOT NETWORKS CONFIDENTIAL & PROPRIETARY
- *
  * Copyright (c) 2017-2018 Barefoot Networks, Inc.
-
- * All Rights Reserved.
- *
- * NOTICE: All information contained herein is, and remains the property of
- * Barefoot Networks, Inc. and its suppliers, if any. The intellectual and
- * technical concepts contained herein are proprietary to Barefoot Networks,
- * Inc.
- * and its suppliers and may be covered by U.S. and Foreign Patents, patents in
- * process, and are protected by trade secret or copyright law.
- * Dissemination of this information or reproduction of this material is
- * strictly forbidden unless prior written permission is obtained from
- * Barefoot Networks, Inc.
- *
- * No warranty, explicit or implicit is provided, unless granted under a
- * written agreement with Barefoot Networks, Inc.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * $Id: $
  *