linux-phytec-ti

drm/bridge: cdns-mhdp: Remove completely untested audio support

The current cdns-mhdp audio support is completely untested. Remove it
until we have some confidence that it actually works.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>