Reduce usage of internal headers in tests

Change-Id: I7ce09328e6c5878fe4275595ce31ac1cb51b85ec
diff --git a/Android.bp b/Android.bp
index 28cb03e..2842395 100644
--- a/Android.bp
+++ b/Android.bp
@@ -3,11 +3,8 @@
     export_include_dirs: ["include"],
 }
 
-//For the test to use
-//TODO: 1. Need to Refactor ResolverStats related code(ex: ResolverController::getDnsInfo).
-//         Then removing this library header file.
-//      2. Change the imports path in netd/TEST_MAPPING after migrating from
-//         system/netd/resolv to packages/modules/resolv.
+// Used only by dns_responder_client_ndk.cpp for ResolverStats.h
+// TODO: refactor stats to use a Parcel and eliminate this dependency
 cc_library_headers {
     name: "libnetd_resolv_internal_headers",
     export_include_dirs: ["."],