Fix extra imports

nerfstudio/process_data/metashape_utils.py

@@ -17,7 +17,7 @@
 import json
 import xml.etree.ElementTree as ET
 from pathlib import Path
-from typing import Dict, List, Optional
+from typing import Dict, List
 
 import numpy as np
 

nerfstudio/scripts/process_data.py

@@ -20,7 +20,7 @@ import sys
 import zipfile
 from dataclasses import dataclass
 from pathlib import Path
-from typing import Optional, Union
+from typing import Union
 
 import numpy as np
 import tyro