staging: unisys: fix braces coding style

fix coding style issue "braces {} are not necessary for single statement blocks"
detected by checkpatch.pl in visorchipset.c
Signed-off-by: Alessandro Parini <alessandro.parini@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorchipset.c

@@ -2017,9 +2017,8 @@ setup_crash_devices_work_queue(struct work_struct *work)
 static void
 bus_create_response(struct visor_device *bus_info, int response)
 {
-	if (response >= 0) {
+	if (response >= 0)
 		bus_info->state.created = 1;
-	}
 
 	bus_responder(CONTROLVM_BUS_CREATE, bus_info->pending_msg_hdr,
 		      response);