staging: vc04_services: get rid of blocked_blocker completion in struct vchiq_arm_state

Nobody is waiting on it, so delete it.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200131103836.14312-5-nsaenzjulienne@suse.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>