Remove explicit configs from YAML to let HF auto-detect HERBench.py

Explicitly declaring configs without data_files was causing HF to
fall back to JSON auto-loading. By removing the configs section,
HF should auto-detect and use the HERBench.py loading script.

README.md

@@ -15,10 +15,6 @@ tags:
 size_categories:
 - 10K<n<100K
 pretty_name: HERBench
-configs:
-- config_name: full
-  default: true
-- config_name: lite
 ---
 
 # HERBench: Multi-Evidence Integration in Video Question Answering