staging: wilc1000: remove unused typedef wilc_wlan_cfg_func_t

This patch removes unused typedef wilc_wlan_cfg_func_t of wilc_wlan.h.
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/wilc_wlan.h

@@ -271,10 +271,6 @@ struct wilc_cfg_frame {
 	u8 frame[MAX_CFG_FRAME_SIZE];
 };
 
-typedef struct {
-	int (*wlan_tx)(u8 *, u32, wilc_tx_complete_func_t);
-} wilc_wlan_cfg_func_t;
-
 typedef struct {
 	int type;
 	u32 seq_no;