Remove libmemunreachable from the VNDK.

It depends on functionality in the bionic
allocator, which may get updated independently
of the vendor partition (as libc is in the LL-NDK).

Bug: 33241851
Test: builds
Change-Id: I435679843229d0d4d2e2be7bfe8c27f558a016dd
diff --git a/Android.bp b/Android.bp
index 4269eaa..cdac76b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -23,7 +23,6 @@
 
 cc_library_shared {
     name: "libmemunreachable",
-    vendor_available: true,
     defaults: ["libmemunreachable_defaults"],
     srcs: [
         "Allocator.cpp",