Remove unused blur handler

Author: Vishal

packages/angular-sdk-components/src/lib/_components/field/radio-buttons/radio-buttons.component.ts

@@ -211,11 +211,6 @@ export class RadioButtonsComponent implements OnInit, OnDestroy {
     handleEvent(this.actionsApi, 'changeNblur', this.propName, event.value);
   }
 
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  fieldOnBlur(event: any) {
-    // "blur" isn't getting fired
-  }
-
   getLocalizedOptionValue(opt: IOption) {
     return this.pConn$.getLocalizedValue(
       opt.value,