MMC/H3: Removing unused variable and useless comment.

Removing unused variable and useless comment from
arch/arm/mach-omap1/board-h3-mmc.c file.
Signed-off-by: David Cohen <david.cohen@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-h3-mmc.c

@@ -36,8 +36,6 @@ static int h3_mmc_set_power(struct device *dev, int slot, int power_on,
 
 static int h3_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
 {
-	int ret = 0;
-
 #ifdef CONFIG_MMC_DEBUG
 	dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1,
 		bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
@@ -47,8 +45,6 @@ static int h3_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
 		return -ENODEV;
 	}
 
-	/* Treated on upper level */
-
 	return bus_mode;
 }