Bug#790338: libcanberra-pulse: unnecessary dependency on pulseaudio package

[Rafal]

Package: libcanberra-pulse
Version: 0.30-2.1
Severity: minor

Dear Maintainer,

the libcanberra-pulse package depends on pulseaudio server but,
in fact, the pulseaudio server may be on a different machine.
I have such situation and the package looks to work without
pulseaudio package installed (i have installed libcanberra-pulse
with --force-depends option).