Docs: Remove 'Notes for advanced users' section from error handling guide

- Content is redundant and covered elsewhere

Refs OpenHands/software-agent-sdk#980

Co-authored-by: openhands <[email protected]>

Author: enyst

sdk/guides/llm-error-handling.mdx

@@ -180,7 +180,3 @@ All exceptions live under `openhands.sdk.llm.exceptions` unless noted.
 
 All of the above (except the explicit cancellation types) inherit from `LLMError`, so you can implement a catch‑all for unexpected SDK LLM errors while still keeping fine‑grained handlers for the most common cases.
 
-## Notes for advanced users
-
-- The SDK performs centralized exception mapping, translating provider/LiteLLM exceptions into the types above. This keeps your app free from provider‑specific exception imports.
-- For long‑running sessions, we strongly recommend configuring a condenser to avoid context‑window interruptions. See the [Context Condenser](/sdk/guides/context-condenser) guide for details and examples.