Remove libart_runtime_headers_ndk from libctstiagent.

It uses slicer, not libdexfile, so it doesn't need this dependency.
This was probably missed in the refactoring in
https://r.android.com/620207.

This will allow cleaning up libart_runtime_headers_ndk and avoid the
sdk variants of the headers internally.

Test: atest --test-mapping cts/hostsidetests/jvmti
Bug: 204364566
Change-Id: I969e749d138799b74cbf03277e48382397fa05f8
diff --git a/test/Android.bp b/test/Android.bp
index 45aa1f3..45f4042 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -775,14 +775,7 @@
     ],
     sdk_version: "current",
     stl: "c++_static",
-    header_libs: [
-        "jni_headers",
-        // This is needed to resolve the base/ header file in libdexfile. Unfortunately there are
-        // many problems with how we export headers that are making doing this the 'right' way
-        // difficult.
-        // TODO: move those headers to art/ rather than under runtime.
-        "libart_runtime_headers_ndk",
-    ],
+    header_libs: ["jni_headers"],
     export_include_dirs: ["ti-agent"],
 }