remove tips for attn_temperature_tuning in llama4 blog (#51)

Since we auto-enable this with max-model-len > 32 in PR vllm-project/vllm#16439, this tip can be removed to avoid confusion.

Author: luccafong

_posts/2025-04-05-llama4.md

@@ -72,7 +72,6 @@ While more performance enhancements are on the way, we believe the Llama 4 model
 
 * **Boost Performance & Context Length:** Set `--kv-cache-dtype fp8` to potentially double the usable context window and gain a performance boost. We observe little to no accuracy drop in relevant evaluations with this setting.
 * **Maximize Context Window (up to 10M):** To fully utilize the maximum context windows (up to 10M for Scout), we recommend serving across multiple nodes using tensor parallelism or pipeline parallelism. Follow our distributed inference guide [here](https://docs.vllm.ai/en/latest/serving/distributed_serving.html).
-* **Improve Long Context Accuracy (\>32K):** We highly recommend adding `--override-generation-config='{"attn_temperature_tuning": true}'` to improve accuracy for contexts longer than 32K tokens.
 
 **Other Hardware Support & Quantizations:**