Accessibility test automation API not working.

1. Due to a previous change that disabled accessibility if not enabled
   and installed serivces are present the automation APIs stopped working
   since they use fake automation service that is not installed.

2. Added clean up of death recipients when binders die.

bug:5374662
bug:5239044

Change-Id: I1f3c8cd1d1c79753a4a64e2b8b2963025abb2939