remove package pulseaudio

Signed-off-by: Stephan Raue <stephan@openelec.tv>
remove package alsa-plugins

Signed-off-by: Stephan Raue <stephan@openelec.tv>
remove package speex

Signed-off-by: Stephan Raue <stephan@openelec.tv>
remove package json-c

Signed-off-by: Stephan Raue <stephan@openelec.tv>
remove package libsndfile

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv into openelec-systemd