traceroute: Remove the $FreeBSD$ pattern

Reviewed by:	imp, markj
MFC after:	1 week
Pull Request:	https://github.com/freebsd/freebsd-src/pull/879

contrib/traceroute/VERSION

@@ -1,2 +1 @@
 1.4a12+FreeBSD
-$FreeBSD$

contrib/traceroute/findsaddr-socket.c

@@ -29,8 +29,6 @@
  * 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.
- *
- * $FreeBSD$
  */
 
 /* XXX Yes this is WAY too complicated */

contrib/traceroute/traceroute.8

@@ -14,7 +14,6 @@
 .\" WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
 .\"	$Id: traceroute.8,v 1.19 2000/09/21 08:44:19 leres Exp $
-.\"	$FreeBSD$
 .\"
 .Dd November 25, 2020
 .Dt TRACEROUTE 8