docs: Remove unnecessary note about batch_get

The search endpoint works correctly - my earlier testing had a bug
where I was checking for 'results' instead of 'items'.

Co-authored-by: openhands <openhands@all-hands.dev>

Author: openhands-agent

openhands/usage/cloud/cloud-api.mdx

@@ -171,11 +171,6 @@ Each update is streamed as it occurs, allowing you to provide real-time feedback
 
 After starting a conversation, you can check its status to monitor whether the agent has completed its task.
 
-<Note>
-  If you know the conversation ID, use the batch get endpoint (`GET /api/v1/app-conversations?ids=...`) 
-  to retrieve status directly. This is the most reliable method.
-</Note>
-
 #### Step 1: Check Start Task Status
 
 When you start a conversation, you receive a start task ID. Poll this endpoint until `status` becomes `READY` and `app_conversation_id` is available: