Remove reference to non-existant directory

external/wpa_supplicant_8/wpa_supplicant/src/hlr_auc_gw does not exist.

Test: treehugger
Change-Id: Ia3c13ca88912375d936c583de4d940ac979fc2b7
diff --git a/wpa_supplicant/Android.mk b/wpa_supplicant/Android.mk
index 51ec414..6b8c4ff 100644
--- a/wpa_supplicant/Android.mk
+++ b/wpa_supplicant/Android.mk
@@ -91,7 +91,6 @@
 INCLUDES += $(LOCAL_PATH)/src/eapol_supp
 INCLUDES += $(LOCAL_PATH)/src/eap_peer
 INCLUDES += $(LOCAL_PATH)/src/eap_server
-INCLUDES += $(LOCAL_PATH)/src/hlr_auc_gw
 INCLUDES += $(LOCAL_PATH)/src/l2_packet
 INCLUDES += $(LOCAL_PATH)/src/radius
 INCLUDES += $(LOCAL_PATH)/src/rsn_supp