Merge "Revert "Change the default docs build to use module stubs"" am: 56e85bb8c0 am: d23ac2655d am: 221a2267c3

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1869970

Change-Id: I0d9d090fb562ed3e7f6bcfec7457145e192631f8