redirect adt guide to release notes to consolidate the deprecation message. related deletion of file: https://critique.corp.google.com/#review/123463890 am: d6c76ddc51 am: 3152ead0f8 am: c26b8afd35 am: f92f6351b6
am: a652237736
* commit 'a6522377366f03792999105e8cd30fb3f9a743ad':
Change-Id: I6c4ac736d53b4d202a9958e694d6b96653321ba0
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