Issue #3244814: Refactor if-statement conditions

modules/cloud_service_providers/k8s/src/Plugin/Block/K8sNodeHeatmapBlock.php

@@ -136,7 +136,7 @@ class K8sNodeHeatmapBlock extends K8sBaseBlock {
     ];
 
     // Add refresh js that uses Event Trigger method of updating the block.
-    if (($this->configuration['use_event_listener'] ?? TRUE) && empty($k8s_node)) {
+    if ($this->configuration['use_event_listener'] && empty($k8s_node)) {
       $build['k8s_node_allocated_resources']['#attached']['library'][] = 'k8s/k8s_refresh_resource_trigger';
       $build['k8s_node_allocated_resources']['#attached']['drupalSettings']['k8s']['use_event_listener'] = TRUE;
     }