zenfone9: Drop HOSTPAD|WPA private lib event

It fix the linker issue with the new Qcom Wlan stuff

ld.lld: error: undefined symbol: wpa_driver_nl80211_driver_event
>>> referenced by driver_nl80211_event.c:2683 (external/wpa_supplicant_8/wpa_supplicant/src/drivers/driver_nl80211_event.c:2683)
>>>               lto.tmp:(qca_nl80211_key_mgmt_auth)
>>> referenced by driver_nl80211_event.c:3208 (external/wpa_supplicant_8/wpa_supplicant/src/drivers/driver_nl80211_event.c:3208)
>>>               lto.tmp:(nl80211_vendor_event)

Change-Id: I9f8ea66557372b809ff0a5a2d1546d8d9a300bf5
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 5561fa4..5d9a205 100755
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -248,10 +248,8 @@
 BOARD_WLAN_DEVICE := qcwcn
 BOARD_HOSTAPD_DRIVER := NL80211
 BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_$(BOARD_WLAN_DEVICE)
-BOARD_HOSTAPD_PRIVATE_LIB_EVENT := "ON"
 BOARD_WPA_SUPPLICANT_DRIVER := NL80211
 BOARD_WPA_SUPPLICANT_PRIVATE_LIB := $(BOARD_HOSTAPD_PRIVATE_LIB)
-BOARD_WPA_SUPPLICANT_PRIVATE_LIB_EVENT := "ON"
 PRODUCT_VENDOR_MOVE_ENABLED := true
 WIFI_DRIVER_DEFAULT := qca_cld3
 WIFI_DRIVER_STATE_CTRL_PARAM := "/dev/wlan"