removed getMqttConfig method

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/mqtt/azure/TbAzureIotHubNode.java

@@ -74,10 +74,6 @@ public class TbAzureIotHubNode extends TbMqttNode {
         }
     }
 
-    TbMqttNodeConfiguration getMqttNodeConfiguration() {
-        return this.mqttNodeConfiguration;
-    }
-
     MqttClient initAzureClient(TbContext ctx) throws Exception {
         return initClient(ctx);
     }

rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/mqtt/azure/TbAzureIotHubNodeTest.java

@@ -21,6 +21,7 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
 import org.thingsboard.common.util.AzureIotHubUtil;
 import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.mqtt.MqttClient;
@@ -98,7 +99,8 @@ public class TbAzureIotHubNodeTest {
         assertThatNoException().isThrownBy(
                 () -> azureIotHubNode.init(ctxMock, new TbNodeConfiguration(JacksonUtil.valueToTree(azureIotHubNodeConfig))));
 
-        TbMqttNodeConfiguration mqttNodeConfiguration = azureIotHubNode.getMqttNodeConfiguration();
+        var mqttNodeConfiguration = (TbMqttNodeConfiguration) ReflectionTestUtils.getField(azureIotHubNode, "mqttNodeConfiguration");
+        assertThat(mqttNodeConfiguration).isNotNull();
         assertThat(mqttNodeConfiguration.getPort()).isEqualTo(8883);
         assertThat(mqttNodeConfiguration.isCleanSession()).isTrue();
     }