net: fddi: skfp: cfm: Remove seemingly unused variable 'ID_sccs'

This variable is present in many source files and has not been used
anywhere (at least internally) since it was introduced.

Fixes the following W=1 kernel build warning(s):

 drivers/net/fddi/skfp/cfm.c: In function ‘cfm’:
 drivers/net/fddi/skfp/cfm.c:211:6: warning: variable ‘oldstate’ set but not used [-Wunused-but-set-variable]
 drivers/net/fddi/skfp/cfm.c:40:19: warning: ‘ID_sccs’ defined but not used [-Wunused-const-variable=]

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/fddi/skfp/cfm.c

@@ -36,10 +36,6 @@
 #define KERNEL
 #include "h/smtstate.h"
 
-#ifndef	lint
-static const char ID_sccs[] = "@(#)cfm.c	2.18 98/10/06 (C) SK " ;
-#endif
-
 /*
  * FSM Macros
  */