am e09009d6: cherrypick Change-Id: I719d9a9929a56c0586a7daba8f889706ec7b2bc1 docs: remove adt.jd and place a redirect in its place to go to ADT Plugin doc

* commit 'e09009d6a63cfab2a64d02ca49a462d46e62f750':
  cherrypick Change-Id: I719d9a9929a56c0586a7daba8f889706ec7b2bc1 docs: remove adt.jd and place a redirect in its place to go to ADT Plugin doc