mac80211: minstrel_ht: remove unused SAMPLE_SWITCH_THR define

Remove unused SAMPLE_SWITCH_THR define.
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Link: https://lore.kernel.org/r/20211116221244.30844-1-ps.report@gmx.netSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/rc80211_minstrel_ht.c

@@ -18,8 +18,6 @@
 #define AVG_AMPDU_SIZE	16
 #define AVG_PKT_SIZE	1200
 
-#define SAMPLE_SWITCH_THR	100
-
 /* Number of bits for an average sized packet */
 #define MCS_NBITS ((AVG_PKT_SIZE * AVG_AMPDU_SIZE) << 3)