feat: Remove deprecated object metrics from controllers fluxcd/flux2#5083

Author: hasithsen

internal/controller/kustomization_controller.go

@@ -184,11 +184,6 @@ func (r *KustomizationReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 			retErr = kerrors.NewAggregate([]error{retErr, err})
 		}
 
-		// Record Prometheus metrics.
-		r.Metrics.RecordReadiness(ctx, obj)
-		r.Metrics.RecordDuration(ctx, obj, reconcileStart)
-		r.Metrics.RecordSuspend(ctx, obj, obj.Spec.Suspend)
-
 		// Log and emit success event.
 		if conditions.IsReady(obj) {
 			msg := fmt.Sprintf("Reconciliation finished in %s, next run in %s",