Make ACTION_CONNECTION_ACCESS_REQUEST to be sent in ordered fashion.

The purpose of this change is to enable automated testing
to confirm incoming connection without involving human.
Remove .setClass so the intent is no longer only sent to Settings.
This is ok because the intent is still hidden and protected.
Remove unused imports.

Change-Id: I3be5df4ab440b299a75ec41d566f9eecb0ab3f31