diff --git a/include/wifi.h b/include/wifi.h
index 922c9a9..cae6777 100755
--- a/include/wifi.h
+++ b/include/wifi.h
@@ -1024,14 +1024,6 @@ typedef enum _HT_CAP_AMPDU_DENSITY {
 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 
-/*
- * A-PMDU buffer sizes
- * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
- */
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-#define IEEE80211_MAX_AMPDU_BUF 0x40
-
-
 /* Spatial Multiplexing Power Save Modes */
 #define WLAN_HT_CAP_SM_PS_STATIC		0
 #define WLAN_HT_CAP_SM_PS_DYNAMIC	1