V4L/DVB (13241): Cleanup redundant tests on unsigned

The variables are unsigned so the test `>= 0' is always true,
the `< 0' test always fails. In these cases the other part of
the test catches wrapped values.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index 5c24c99..3bca744 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -304,7 +304,7 @@
 {
 	struct saa7110 *decoder = to_saa7110(sd);
 
-	if (input < 0 || input >= SAA7110_MAX_INPUT) {
+	if (input >= SAA7110_MAX_INPUT) {
 		v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
 		return -EINVAL;
 	}