clean up ui code

ui-ngx/src/app/modules/home/components/profile/device/mqtt-device-profile-transport-configuration.component.ts

@@ -92,7 +92,7 @@ export class MqttDeviceProfileTransportConfigurationComponent implements Control
     });
     let configurationFormGroup = this.mqttDeviceProfileTransportConfigurationFormGroup.controls.configuration as FormGroup;
     configurationFormGroup.get('transportPayloadType').valueChanges.subscribe(payloadType => {
-        this.onTransportPayloadTypeChanged(payloadType, configurationFormGroup);
+        this.updateTransportPayloadBasedControls(type, configurationFormGroup)
         this.mqttDeviceProfileTransportConfigurationFormGroup.updateValueAndValidity();
     });
     this.mqttDeviceProfileTransportConfigurationFormGroup.valueChanges.subscribe(() => {
@@ -132,10 +132,6 @@ export class MqttDeviceProfileTransportConfigurationComponent implements Control
     this.propagateChange(configuration);
   }
 
-  private onTransportPayloadTypeChanged(type: MqttTransportPayloadType, configurationFormGroup: FormGroup) {
-    this.updateTransportPayloadBasedControls(type, configurationFormGroup)
-  }
-
   private updateTransportPayloadBasedControls(type: MqttTransportPayloadType, configurationFormGroup: FormGroup) {
     if (type === MqttTransportPayloadType.PROTOBUF) {
       configurationFormGroup.registerControl('deviceTelemetryProtoSchema', this.fb.control(null, Validators.required));