qcacld-3.0: Remove macro MAC_ADDR_LEN

The macro MAC_ADDR_LEN is unused, so remove it.

Change-Id: Ic9770e7ffbcdfe3c01bcafb376c5e2c7b7f29eec
CRs-Fixed: 2375423

core/hdd/inc/wlan_hdd_main.h

@@ -702,7 +702,6 @@ struct hdd_roaming_info {
 
 #ifdef FEATURE_WLAN_WAPI
 /* Define WAPI macros for Length, BKID count etc*/
-#define MAC_ADDR_LEN           6
 #define MAX_NUM_AKM_SUITES    16
 
 /** WAPI AUTH mode definition */