Revert "Revert "[voicecall] Remove pulseaudio and resource policy plugins.""

This reverts commit f43477adf8b56fb873f45d0b6669fdf49762e91b.
[voicecall] Fixed .spec file to remove pulseaudio sub-package

Signed-off-by: Tom Swindell <t.swindell@rubyx.co.uk>