mmc: core: pwrseq_simple: remove unused header file

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/pwrseq_simple.c

@@ -12,7 +12,6 @@
 #include <linux/slab.h>
 #include <linux/device.h>
 #include <linux/err.h>
-#include <linux/of_gpio.h>
 #include <linux/gpio/consumer.h>
 
 #include <linux/mmc/host.h>