[media] dvb: remove unnecessary code

remove unnecessary code that matches this coccinelle pattern
	if (...)
		return ret;
	return ret;
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/cx24116.c

@@ -1452,11 +1452,7 @@ static int cx24116_set_frontend(struct dvb_frontend *fe,
 	cmd.args[0x00] = CMD_BANDWIDTH;
 	cmd.args[0x01] = 0x00;
 	cmd.len = 0x02;
-	ret = cx24116_cmd_execute(fe, &cmd);
-	if (ret != 0)
-		return ret;
-
-	return ret;
+	return cx24116_cmd_execute(fe, &cmd);
 }
 
 static int cx24116_tune(struct dvb_frontend *fe, struct dvb_frontend_parameters *params,