Eliminate submodules. am: 602fa17230 am: bff36ef47c am: ae1d7af67e am: a020e98638 am: 974d709591

Original change: https://android-review.googlesource.com/c/platform/external/pandora/avatar/+/2188679

Change-Id: I57922df6a89d5f05fbf5fa28e3053dd6ebc160ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>