Remove CSRG copyright, there isn't any code left from Berkeley here.

In 2016 natano@ removed the last two functions remaining from the CSRG
time: lockinit() and lockstatus().  At that time they were already wrappers
around recursive rwlocks functions from thib@ that tedu@ committed in 2013.

ok deraadt@

diff --git a/sys/kern/kern_lock.c b/sys/kern/kern_lock.c
index fe670a7..5da35a7 100644 (file)
--- a/sys/kern/kern_lock.c
+++ b/sys/kern/kern_lock.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kern_lock.c,v 1.53 2018/01/25 15:06:29 mpi Exp $      */
+/*     $OpenBSD: kern_lock.c,v 1.54 2018/02/08 12:57:24 mpi Exp $      */
 
 /*
  * Copyright (c) 2004 Artur Grabowski <art@openbsd.org>
@@ -24,40 +24,6 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-/*
- * Copyright (c) 1995
- *     The Regents of the University of California.  All rights reserved.
- *
- * This code contains ideas from software contributed to Berkeley by
- * Avadis Tevanian, Jr., Michael Wayne Young, and the Mach Operating
- * System project at Carnegie-Mellon University.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. Neither the name of the University 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 REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *     @(#)kern_lock.c 8.18 (Berkeley) 5/21/95
- */
 
 #include <sys/param.h>
 #include <sys/systm.h>