wireless: remove redundant tests on unsigned

bufsize and remainder are unsigned. When negative they are wrapped and caught by
the other test.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/orinoco/hermes.c b/drivers/net/wireless/orinoco/hermes.c
index f2c918c..1a2fca7 100644
--- a/drivers/net/wireless/orinoco/hermes.c
+++ b/drivers/net/wireless/orinoco/hermes.c
@@ -469,7 +469,7 @@
 	u16 rlength, rtype;
 	unsigned nwords;
 
-	if ((bufsize < 0) || (bufsize % 2))
+	if (bufsize % 2)
 		return -EINVAL;
 
 	err = hermes_docmd_wait(hw, HERMES_CMD_ACCESS, rid, NULL);