Remove old MediaHandler API

:Release Notes:
Requred to change dependency order between CBOX and DB8

:Detailed Notes:

:Testing Performed:
tested on local build

:QA Notes:

:Issues Addressed:
[ANG-966] [Boottime] DB8 should not call cbox in boottime
[BHV-3659] [CBOX]: Notify DB8 about attached/detached media

Open-webOS-DCO-1.0-Signed-off-by: Igor Kuksyuk <igor.kuksiuk@lge.com>

Change-Id: I4ad46311faf8b5bc9e20df9230453ccb10c12a42
Reviewed-on: https://g2g.palm.com/5316
Reviewed-by: DCO Verification
Tested-by: Maksym Sditanov <maxim.sditanov@lge.com>
Reviewed-by: Igor Kuksyuk <igor.kuksiuk@lge.com>
Reviewed-by: Maksym Sditanov <maxim.sditanov@lge.com>