net/smc: do a few smc_core.c cleanups

This patch consists of Christmas tree fixes and removal of an unneeded
function parameter.

Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>