style cleanup: Remove duplicate $FreeBSD$ tags.

These files had tags after the copyright notice,
inside the comment block (incorrect, removed),
and outside the comment block (correct).

Approved by:	rwatson (mentor)

sbin/atm/atm/atm.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_fore200.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_inet.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_print.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_set.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_show.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/atm/atm_subr.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/fore_dnld/fore_dnld.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *	@(#) $FreeBSD$
- *
  */
 
 /*

sbin/atm/ilmid/ilmid.c

@@ -22,9 +22,6 @@
  *
  * Copies of this Software may be made, however, the above copyright
  * notice must be reproduced on all copies.
- *
- *      @(#) $FreeBSD$
- *
  */
 
 /*