Merge "Remove unused dx-doc-stubs" into main am: 2b4a033fae am: 753fc6def4

Original change: https://android-review.googlesource.com/c/platform/dalvik/+/2653043

Change-Id: Ie08ffa067f37db4e5c586cc31345d0247ec91cda
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>