Remove hardware/interfaces/wifi/supplicant/1.1/vts/Android.mk

There's no other Android.mk under hardware/interfaces/wifi/supplicant/1.1/vts/

Bug: 347649742
Test: m VtsHalWifiSupplicantV1_1TargetTest
Change-Id: Id64bab8b4522c7240af7692b3782a53a7d64f10a
diff --git a/wifi/supplicant/1.1/vts/Android.mk b/wifi/supplicant/1.1/vts/Android.mk
deleted file mode 100644
index 6361f9b..0000000
--- a/wifi/supplicant/1.1/vts/Android.mk
+++ /dev/null
@@ -1,2 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(call all-makefiles-under,$(LOCAL_PATH))