always invalidate enabled timers at the beginning of PolicyManager2.unenforce
always invalidate enabled timers at the beginning of PolicyManager2.unenforce

MelvinTo/firewalla,firewalla/firewalla,MelvinTo/firewalla,firewalla/firewalla,MelvinTo/firewalla,MelvinTo/firewalla,firewalla/firewalla,firewalla/firewalla,MelvinTo/firewalla,firewalla/firewalla