Remove obsolete note about libatomic. am: 59daf35 am: 7fd9ff6
am: 72ef5fc

* commit '72ef5fcee63c6a396760947ebc4d1ba6a42ff045':
  Remove obsolete note about libatomic.

Change-Id: I31d4aab0437e14547ca101a8a63725e2ac251912