succd: do not engage pirani failsafe on startup, as that prohibits restarting succd when the machine runs

succbone/succd/process.go

@@ -123,7 +123,6 @@ func (d *daemon) processOnce(_ context.Context) error {
 			klog.Infof("SAFETY: Pressure is low enough (%s mbar) for diffusion pump operation; quitting diffusion pump lockout", formatMbar(mbar))
 		}
 	} else {
-		d.safety.failsafe = true
 		d.safety.highPressure = true
 	}