[RESTRICT AUTOMERGE] docs: Removing obsolee TODO am: b86df213a3 am: 9da05e017e am: 7015c95720

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12663552

Change-Id: Iec5085085733739a8b8e038130ac501d3608ccd7