Merge "Cleanup obsolete doc build targets" into main am: a445bfed am:...

Merge "Cleanup obsolete doc build targets" into main am: a445bfed am: b058ee56 am: e048e782 am: e634f38a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2781371



Change-Id: I2e61bcc148d71fcbcb3026942344a7e374f60dbd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>