Remove sun.... libcore classes from light grey/vendor lists

Removes all the sun... libcore classes from the light grey/vendor
lists as they are now using UnsupportedAppUsage annotation.

This was tested by making and then manually checking that the generated
out/target/common/obj/PACKAGING/hiddenapi-light-greylist.txt was the
same (after sorting) before and after this change.

Test: see above
Bug: 117818301
Change-Id: I8dadc9215e929c5047fdfe8241c430544e963c19
ge-Id: I2a9ed3fbfb0c703eafcf431b93f8a419c5ec83a3
diff --git a/Android.bp b/Android.bp
index 433979b..48391fc 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1544,6 +1544,10 @@
 droidstubs {
     name: "hiddenapi-mappings",
     defaults: ["metalava-api-stubs-default"],
+    srcs: [
+        ":openjdk_java_files",
+        ":non_openjdk_java_files",
+    ],
     arg_files: [
         "core/res/AndroidManifest.xml",
     ],