hostapd: remove unused struct hostapd_ubus_iface

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(backported from f0ac9afe69)

package/network/services/hostapd/patches/600-ubus_support.patch

@@ -30,16 +30,7 @@
  	int interface_added; /* virtual interface added for this BSS */
  	unsigned int started:1;
  	unsigned int disabled:1;
-@@ -392,6 +394,8 @@ struct hostapd_iface {
- 	struct hostapd_config *conf;
- 	char phy[16]; /* Name of the PHY (radio) */
- 
-+	struct hostapd_ubus_iface ubus;
-+
- 	enum hostapd_iface_state {
- 		HAPD_IFACE_UNINITIALIZED,
- 		HAPD_IFACE_DISABLED,
-@@ -544,6 +548,7 @@ hostapd_alloc_bss_data(struct hostapd_if
+@@ -544,6 +546,7 @@ hostapd_alloc_bss_data(struct hostapd_if
  		       struct hostapd_bss_config *bss);
  int hostapd_setup_interface(struct hostapd_iface *iface);
  int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);

package/network/services/hostapd/src/src/ap/ubus.h

@@ -30,10 +30,6 @@ struct hostapd_data;
 #include <libubox/avl.h>
 #include <libubus.h>
 
-struct hostapd_ubus_iface {
-	struct ubus_object obj;
-};
-
 struct hostapd_ubus_bss {
 	struct ubus_object obj;
 	struct avl_tree banned;
@@ -50,8 +46,6 @@ void hostapd_ubus_notify(struct hostapd_data *hapd, const char *type, const u8 *
 
 #else
 
-struct hostapd_ubus_iface {};
-
 struct hostapd_ubus_bss {};
 
 static inline void hostapd_ubus_add_iface(struct hostapd_iface *iface)