Revert bluactive: let's try and live without the idle notifier and rely on the timer instead.
Based on crpalmer's and franciscofranco patch (reverted from commit 5905f0a010bfd2b23d31d82e1923c262e6a511c6)

Change-Id: Iff71566f5214f36a46b718343e52d4e8287aefcc