Remove polling period from evaluator (#10)

Evaluator will receive events when poller changes, so naturally this
option was not even used. Although it could become a problem for
external pollers, but we will cross that bridge when (if) we get there.

internal/controller/autoscaler/mostwantedtwophasehysteresisevaluation_controller.go

@@ -336,7 +336,7 @@ func (r *MostWantedTwoPhaseHysteresisEvaluationReconciler) Reconcile(ctx context
 	}
 	log.Info("Resource status updated", "projection", len(evaluation.Status.Projection))
 
-	// We should get a reconciliation request when poller is changed
+	// We should get a reconciliation request on poller changes
 	return ctrl.Result{}, nil
 }