During the last workshop the transition to the new framework was presented.
This change essentially deprecates the SMACK-based application framework.

To prepare the integration of it, we remove the deprecated components:
- meta-speech-framework and the voiceagent services

Bug-AGL: SPEC-4121

Signed-off-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Change-Id: I803dd18184338a1f5519af27136e1d5a58ee9369