Remove VNDK definition(s)

As of VNDK deprecation, any libraries that defines vndk is no longer
valid anymore. This change removes all VNDK definition(s) from modules
which was VNDK.

Bug: 328994089
Test: AOSP CF build succeeded
Change-Id: Iae8cd4ebb38089e0b5c2863ed89d36c36f103024
diff --git a/Android.bp b/Android.bp
index 9412b4b..1a71363 100644
--- a/Android.bp
+++ b/Android.bp
@@ -7,9 +7,6 @@
 cc_library_shared {
     name: "libmemtrack",
     vendor_available: true,
-    vndk: {
-        enabled: true,
-    },
     srcs: ["memtrack.cpp"],
     export_include_dirs: ["include"],
     local_include_dirs: ["include"],