dabba: remove thread ipc calls.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: cleanup ipc reference in capture functions.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: cleanup remaining ipc references.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: remove last traces of ipc messages.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>