Update README.md

README.md

@@ -212,31 +212,6 @@ Follow these steps to set up the dataset:
 
 ### Detailed Setup
 
-<details>
-<summary><b>2. Extract Scene Assets (Required)</b></summary>
-
-SimEngine scene assets are stored as split archives and must be extracted before use:
-
-```bash
-cd data/sim_engine/assets
-
-# Extract all scene assets
-for dir in navtest navtrain navtest_failures; do
-    echo "Processing ${dir}..."
-    cd ${dir}
-    cat ${dir}.tar.gz.part* > ${dir}.tar.gz
-    tar -xzf ${dir}.tar.gz --strip-components=1  # Avoid nested directories
-    rm ${dir}.tar.gz  # Optional: remove merged archive
-    cd ..
-done
-
-cd ../../..
-```
-
-Or extract them manually one by one ([see detailed instructions in SimEngine Data section](#3️⃣-simengine-data-datasim_engine)).
-
-</details>
-
 <details>
 <summary><b>4. Create Symlinks (Optional)</b></summary>