refactor: Remove duplicated function and use existing invoked function

backend/src/services/WbotServices/wbotMessageListener.ts

@@ -1984,12 +1984,12 @@ async function backUra(whatsappId: any, contactId: any, data: any) {
     id = lstIds[lstIds.length - 1];
   }
 
-  const whatsapp = await whatsappCache(whatsappId);
+  // const whatsapp = await whatsappCache(whatsappId);
 
   await createObject({
     whatsappId,
     contactId,
-    identifier: whatsapp?.number ? `ura_${whatsapp?.number}` : "ura",
+    identifier: _whatsapp?.number ? `ura_${_whatsapp?.number}` : "ura",
     value: id,
     history
   });