Merge "Revert "Change the default docs build to use module stubs"" am: 56e85bb8c0 am: d23ac2655d am: 221a2267c3 am: f3d020454f

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

Change-Id: Ifd2e0116e5bf5cffaa106ef713e02ed3f8ce9d62