Move schedule_flush_now to a more reasonable place.
Move schedule_flush_now to a more reasonable place.

wlanslovenija/babeld,tcatm/babeld,boutier/babeld,jech/babeld,wlanslovenija/babeld,dtaht/babeld-shortrtt-metrics,Gwendocg/babeldToS,woniullb/babeld,jech/babeld,Drooids/babeld,Gwendocg/babeldToS,sudomesh/babeld