Revert "bluetooth: put p/a/Bluetooth into a namespace"

This reverts commit 6d4d8655a3ee3437b861a7bfab7ca29f3085b7b4.

Since AOSP BT App is now used as a default, drop the
namespace.

Issue: FP4-INT#3
Issue: FP3-A11#227
Change-Id: I070e740783a1c33f7b3b87b02fb11a204a44ae4c
1 file changed