Refactor commented code for clarity in _read_parquet function

Author: legout

src/flowerpower/fs/ext.py

@@ -949,7 +949,7 @@ def _read_parquet(
     if concat:
         # Unify schemas before concatenation if opt_dtypes or multiple tables
         if isinstance(tables, list):
-            #if len(tables) > 1:
+            # if len(tables) > 1:
             #    schemas = [t.schema for t in tables]
             #    unified_schema = unify_schemas_pa(schemas)
             #    tables = [cast_schema(t, unified_schema) for t in tables]