chore: remove stale eval_results

eval_results/scaleup_BoN8_d_K8_1stage_planner_iter2_mixedtemp_bird_dev.jsonl

@@ -1,3 +0,0 @@
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eval_results/scaleup_BoN8_d_K8_3stage_planner_iter2_mixedtemp_vsel05_vcond06_replanner05_bird_dev.jsonl

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eval_results/scaleup_BoN8_d_K8_3stage_planner_iter2_mixedtemp_vsel_vcond_fixer_orpo_bird_dev.jsonl

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