USB: serial: keyspan: Removed unrequired parentheses.

Changes to conform with checkpatch.sh script. - return is not a
function, parentheses not required. Removed 1 checkpatch.sh error.
Signed-off-by: Ben Minerds <puzzleduck@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/keyspan.c

@@ -1235,7 +1235,7 @@ static int keyspan_fake_startup(struct usb_serial *serial)
 
 	if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
 		dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
-		return(1);
+		return 1;
 	}
 
 	dbg("Uploading Keyspan %s firmware.", fw_name);