hwmon: (nct6775) Clean up a condition

I removed the "dsw_en &&" chunk of the condition because we know that
"dsw_en" is set.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/nct6775.c

@@ -3550,8 +3550,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 
 				if (!fan6pin)
 					fan6pin = (regval_2a & BIT(4)) &&
-					  (!dsw_en ||
-					   (dsw_en && (regval_ed & BIT(4))));
+					  (!dsw_en || (regval_ed & BIT(4)));
 				if (!pwm6pin)
 					pwm6pin = (regval_2a & BIT(3)) &&
 					  (regval_ed & BIT(2));