dsp-bridge: cleanup node_free
dsp-bridge: cleanup node_free

Now most of the crap is gone :)

Signed-off-by: Felipe Contreras <de77a8b9cd239b204c19c52ed62e48ab47243362@nokia.com>

felipec/gst-dsp,community-ssu/gst-dsp,community-ssu/gst-dsp,community-ssu/gst-dsp,felipec/gst-dsp