mac80211: remove unused mesh_mgmt_ies_add() prototype

Said function was removed some time ago.
Signed-off-by: NBob Copeland <bob@cozybit.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

net/mac80211/mesh.h

@@ -215,8 +215,6 @@ int mesh_rmc_check(struct ieee80211_sub_if_data *sdata,
 bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 			struct ieee802_11_elems *ie);
 void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
-void mesh_mgmt_ies_add(struct ieee80211_sub_if_data *sdata,
-		       struct sk_buff *skb);
 int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
 			 struct sk_buff *skb);
 int mesh_add_meshid_ie(struct ieee80211_sub_if_data *sdata,