Now we have a proper C++ library, use std::unique_ptr.

Also remove the Android.libcxx.mk and other bits of stlport compatibility
mechanics.

Change-Id: Icdf7188ba3c79cdf5617672c1cfd0a68ae596a61
diff --git a/runtime/verifier/method_verifier_test.cc b/runtime/verifier/method_verifier_test.cc
index 2bcf3e0..9ac04d7 100644
--- a/runtime/verifier/method_verifier_test.cc
+++ b/runtime/verifier/method_verifier_test.cc
@@ -17,8 +17,8 @@
 #include "method_verifier.h"
 
 #include <stdio.h>
+#include <memory>
 
-#include "UniquePtrCompat.h"
 #include "class_linker.h"
 #include "common_runtime_test.h"
 #include "dex_file.h"