batman-adv: remove unused BATADV_BONDING_TQ_THRESHOLD constant

BATADV_BONDING_TQ_THRESHOLD is not used anymore since the implementation
of the bat_neigh_is_similar_or_better() API function.
Such function uses the more generic BATADV_TQ_SIMILARITY_THRESHOLD
constant.

Therefore, remove definition of the unused BATADV_BONDING_TQ_THRESHOLD
constant.
Signed-off-by: NAntonio Quartulli <a@unstable.cc>
Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch>

net/batman-adv/main.h

@@ -100,11 +100,6 @@
  */
 #define BATADV_TQ_SIMILARITY_THRESHOLD 50
 
-/* how much worse secondary interfaces may be to be considered as bonding
- * candidates
- */
-#define BATADV_BONDING_TQ_THRESHOLD	50
-
 /* should not be bigger than 512 bytes or change the size of
  * forw_packet->direct_link_flags
  */