wifi: wilc1000: Remove unused declarations

Commit 8399918f ("staging: wilc1000: use RCU list to maintain vif interfaces list")
removed wilc_get_interface() but not its declaration.
Commit 9bc061e8 ("staging: wilc1000: added support to dynamically add/remove interfaces")
declared but never implemented wilc_cfg_alloc() and wilc_netdev_interface().
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230819102100.13720-1-yuehaibing@huawei.com

drivers/net/wireless/microchip/wilc1000/cfg80211.h

@@ -8,15 +8,12 @@
 #define WILC_CFG80211_H
 #include "netdev.h"
 
-struct wiphy *wilc_cfg_alloc(void);
 int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type,
 		       const struct wilc_hif_func *ops);
 struct wilc *wilc_create_wiphy(struct device *dev);
 void wilc_deinit_host_int(struct net_device *net);
 int wilc_init_host_int(struct net_device *net);
 void wilc_wfi_monitor_rx(struct net_device *mon_dev, u8 *buff, u32 size);
-struct wilc_vif *wilc_netdev_interface(struct wilc *wl, const char *name,
-				       enum nl80211_iftype type);
 void wilc_wfi_deinit_mon_interface(struct wilc *wl, bool rtnl_locked);
 struct net_device *wilc_wfi_init_mon_interface(struct wilc *wl,
 					       const char *name,
@@ -24,7 +21,6 @@ struct net_device *wilc_wfi_init_mon_interface(struct wilc *wl,
 void wilc_update_mgmt_frame_registrations(struct wiphy *wiphy,
 					  struct wireless_dev *wdev,
 					  struct mgmt_frame_regs *upd);
-struct wilc_vif *wilc_get_interface(struct wilc *wl);
 struct wilc_vif *wilc_get_wl_to_vif(struct wilc *wl);
 void wlan_deinit_locks(struct wilc *wilc);
 #endif