Removes reference to undici as it messes with spans

Author: samejr

docs/config/config-file.mdx

@@ -129,7 +129,6 @@ Some ones we recommend:
 
 | Package                                 | Description                                                                                                              |
 | --------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
-| `@opentelemetry/instrumentation-undici` | Logs all fetch calls (inc. Undici fetch)                                                                                 |
 | `@opentelemetry/instrumentation-http`   | Logs all HTTP calls                                                                                                      |
 | `@prisma/instrumentation`               | Logs all Prisma calls, you need to [enable tracing](https://github.com/prisma/prisma/tree/main/packages/instrumentation) |
 | `@traceloop/instrumentation-openai`     | Logs all OpenAI calls                                                                                                    |