staging: wilc1000: remove unused files

This patch removes linux_wlan_sdio.[ch] which is not used anymore.
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/Makefile

@@ -14,7 +14,7 @@ wilc1000-objs := wilc_wfi_cfgoperations.o linux_wlan.o linux_mon.o \
 			wilc_wlan.o
 
 obj-$(CONFIG_WILC1000_SDIO) += wilc1000-sdio.o
-wilc1000-sdio-objs += linux_wlan_sdio.o wilc_sdio.o
+wilc1000-sdio-objs += wilc_sdio.o
 
 obj-$(CONFIG_WILC1000_SPI) += wilc1000-spi.o
 wilc1000-spi-objs += linux_wlan_spi.o wilc_spi.o

drivers/staging/wilc1000/linux_wlan_sdio.c

-#include "wilc_wfi_netdevice.h"
-
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/sdio_ids.h>
-#include <linux/mmc/sdio.h>
-#include <linux/mmc/host.h>
-#include <linux/of_gpio.h>
-
-#include "linux_wlan_sdio.h"

drivers/staging/wilc1000/linux_wlan_sdio.h

-#include <linux/mmc/sdio_func.h>