fix: avoid calling UpdatePropertyCache (#2322)

Fix #2307.

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-->

## Summary by CodeRabbit

- **Bug Fixes**
  - Improved error handling for molecule SMILES conversion
  - Enhanced molecule name and isomer identification logic

Note: These changes are primarily internal improvements to the molecule
processing functionality, which may provide more robust handling of
chemical data conversions.

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Signed-off-by: Jinzhe Zeng <jinzhe.zeng@rutgers.edu>

Author: njzjz

reacnetgenerator/_path.py

@@ -267,7 +267,6 @@ def convertSMILES(self, atoms, bonds):
         # https://github.com/rdkit/rdkit/discussions/6613#discussioncomment-6688021
         for a in m.GetAtoms():  # type:ignore
             a.SetNoImplicit(True)
-            a.UpdatePropertyCache()
         name = Chem.MolToSmiles(m)
         return self._re(name)