Remove restrictive part of copyright header

As per https://bugzilla.mozilla.org/show_bug.cgi?id=1922760#c3

Author: msirringhaus

crypto/include/nss_fips.h

@@ -2,22 +2,6 @@
  * Copyright (c) 2024, Red Hat, Inc.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- *   Redistributions in binary form must reproduce the above
- *   copyright notice, this list of conditions and the following
- *   disclaimer in the documentation and/or other materials provided
- *   with the distribution.
- *
- *   Neither the name of the Red Hat, Inc. nor the names of its
- *   contributors may be used to endorse or promote products derived
- *   from this software without specific prior written permission.
- *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS