Remove IBluetooth.sendConnectionStateChanged

API broadcasts should not be triggered by arbitrary
apps in the system. This call was also not guarded
by a permission.

Cleaning up AIDL to make it stable.

Bug: 145171640
Test: compile
Change-Id: I01e85de4e25d9e16e0cfd526b7d3a7f974aad676
1 file changed