misc: mic: Fix reported static checker warning

Delete unnecessary prints resulting in an "spdev could be null"
warning from a static checker in scif_peer_remove(..).

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>