staging: comedi: ni_labpc: checkpatch.pl cleanup (else is not useful)

Fix the checkpatch.pl warning:

WARNING: else is not generally useful after a break or return
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/ni_labpc.c

@@ -1051,9 +1051,9 @@ static int labpc_8255_mmio(int dir, int port, int data, unsigned long iobase)
 	if (dir) {
 		writeb(data, (void __iomem *)(iobase + port));
 		return 0;
-	} else {
-		return readb((void __iomem *)(iobase + port));
 	}
+
+	return readb((void __iomem *)(iobase + port));
 }
 
 /* lowlevel write to eeprom/dac */