Revert "common/daemon: add a method to reexec itself"

This reverts commit 216786d40e. We don't
really need that if we move logic to cmd package.

cmd/components.go

@@ -39,7 +39,6 @@ func StartStopComponents(r *reporter.Reporter, daemonComponent daemon.Component,
 
 	<-daemonComponent.Terminated()
 	r.Info().Msg("stopping all components")
-	daemonComponent.FinishReexec()
 	return nil
 }