mmc: sdhci-pxav3: Remove unused clk_enable from sdhci_pxa

clk_enable from struct sdhci_pxa is unused, remove it from the private
driver data.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-pxav3.c

@@ -59,7 +59,6 @@
 #define SDCE_MISC_INT_EN	(1<<1)
 
 struct sdhci_pxa {
-	u8	clk_enable;
 	u8	power_mode;
 };