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

net: fddi: skfp: ecm: 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/ecm.c: In function ‘ecm_fsm’:
 drivers/net/fddi/skfp/ecm.c:44:19: warning: ‘ID_sccs’ defined but not used [-Wunused-const-variable=]

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201102114512.1062724-3-lee.jones@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>