thermal: int340x: delete bogus length check

This check has a signedness bug and does not work.  If "length" is
larger than "PAGE_SIZE" then "PAGE_SIZE - length" is not negative
but instead it is a large unsigned value.  Fortunately, Takashi Iwai
changed this code to use scnprint() instead of snprintf() so now
"length" is never larger than "PAGE_SIZE - 1" and the check can be
removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/thermal/intel/int340x_thermal/int3400_thermal.c

@@ -129,11 +129,10 @@ static ssize_t available_uuids_show(struct device *dev,
 
 	for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
 		if (priv->uuid_bitmap & (1 << i))
-			if (PAGE_SIZE - length > 0)
-				length += scnprintf(&buf[length],
-						   PAGE_SIZE - length,
-						   "%s\n",
-						   int3400_thermal_uuids[i]);
+			length += scnprintf(&buf[length],
+					    PAGE_SIZE - length,
+					    "%s\n",
+					    int3400_thermal_uuids[i]);
 	}
 
 	return length;