staging: vt6656: struct vnt_private remove uCwMin/uCwMax

Although set these variables are not used.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/card.c

@@ -369,13 +369,11 @@ void vnt_update_ifs(struct vnt_private *priv)
 		priv->uSlot = C_SLOT_SHORT;
 		priv->uSIFS = C_SIFS_A;
 		priv->uDIFS = C_SIFS_A + 2 * C_SLOT_SHORT;
-		priv->uCwMin = C_CWMIN_A;
 		max_min = 4;
 	} else if (priv->byPacketType == PK_TYPE_11B) {
 		priv->uSlot = C_SLOT_LONG;
 		priv->uSIFS = C_SIFS_BG;
 		priv->uDIFS = C_SIFS_BG + 2 * C_SLOT_LONG;
-		priv->uCwMin = C_CWMIN_B;
 		max_min = 5;
 	} else {/* PK_TYPE_11GA & PK_TYPE_11GB */
 		bool ofdm_rate = false;
@@ -397,16 +395,12 @@ void vnt_update_ifs(struct vnt_private *priv)
 			}
 		}
 
-		if (ofdm_rate == true) {
-			priv->uCwMin = C_CWMIN_A;
+		if (ofdm_rate == true)
 			max_min = 4;
-		} else {
-			priv->uCwMin = C_CWMIN_B;
+		else
 			max_min = 5;
-			}
 	}
 
-	priv->uCwMax = C_CWMAX;
 	priv->uEIFS = C_EIFS;
 
 	switch (priv->rf_type) {

drivers/staging/vt6656/device.h

@@ -328,8 +328,6 @@ struct vnt_private {
 	u32 uDIFS;  /* Current DIFS */
 	u32 uEIFS;  /* Current EIFS */
 	u32 uSlot;  /* Current SlotTime */
-	u32 uCwMin; /* Current CwMin */
-	u32 uCwMax; /* CwMax is fixed on 1023 */
 
 	/* Rate */
 	u8 byBBType; /* 0: 11A, 1:11B, 2:11G */