Remove apex_available on libandroid_runtime_vm_headers

Dependency of media APEXes on libbinder has been
cleaned up. Hence, there's no need to make
libandroid_runtime_vm_headers apex_available to
these APEXes.

Fixes: 193742372
Test: TH

Change-Id: Ide613376b94e1680ab7e26ef5cb975a80c44fb01

core/jni/Android.bp

@@ -405,9 +405,4 @@ cc_library_headers {
     export_header_lib_headers: [
         "jni_headers",
     ],
-    apex_available: [
-        "//apex_available:platform",
-        "com.android.media",
-        "com.android.media.swcodec",
-    ],
 }