staging: wilc1000: remove wilc_debug_func of hif_init

This patch removes wilc_debug_func of hif_init and remove it's related
functions as well because it 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/wilc_sdio.c

@@ -512,7 +512,7 @@ static int sdio_sync(struct wilc *wilc)
 	return 1;
 }
 
-static int sdio_init(struct wilc *wilc, wilc_debug_func debug_func)
+static int sdio_init(struct wilc *wilc)
 {
 	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	sdio_cmd52_t cmd;

drivers/staging/wilc1000/wilc_spi.c

@@ -734,7 +734,7 @@ static int wilc_spi_sync(struct wilc *wilc)
 	return 1;
 }
 
-static int _wilc_spi_init(struct wilc *wilc, wilc_debug_func func)
+static int _wilc_spi_init(struct wilc *wilc)
 {
 	struct spi_device *spi = to_spi_device(wilc->dev);
 	u32 reg;

drivers/staging/wilc1000/wilc_wlan.c

@@ -1587,7 +1587,7 @@ int wilc_wlan_init(struct net_device *dev)
 
 	PRINT_D(INIT_DBG, "Initializing WILC_Wlan ...\n");
 
-	if (!wilc->hif_func->hif_init(wilc, wilc_debug)) {
+	if (!wilc->hif_func->hif_init(wilc)) {
 		ret = -EIO;
 		goto _fail_;
 	}

drivers/staging/wilc1000/wilc_wlan.h

@@ -226,7 +226,7 @@ struct rxq_entry_t {
  ********************************************/
 struct wilc;
 struct wilc_hif_func {
-	int (*hif_init)(struct wilc *, wilc_debug_func);
+	int (*hif_init)(struct wilc *);
 	int (*hif_deinit)(struct wilc *);
 	int (*hif_read_reg)(struct wilc *, u32, u32 *);
 	int (*hif_write_reg)(struct wilc *, u32, u32);