revert 965968c and 965968c

python/src/lib.rs

@@ -1385,20 +1385,6 @@ impl From<&PyAddAction> for Add {
     }
 }
 
-struct GilIterator {
-    reader: ArrowArrayStreamReader,
-}
-
-impl Iterator for GilIterator {
-    type Item = RecordBatch;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        let reader = &mut self.reader;
-
-        Python::with_gil(|_| reader.next().map(|v| v.unwrap()))
-    }
-}
-
 #[pyfunction]
 #[allow(clippy::too_many_arguments)]
 fn write_to_deltalake(
@@ -1419,7 +1405,7 @@ fn write_to_deltalake(
     custom_metadata: Option<HashMap<String, String>>,
 ) -> PyResult<()> {
     py.allow_threads(|| {
-        let batches = GilIterator { reader: data.0 }; // The pyarrow reader can be backed by a python object
+        let batches = data.0.map(|batch| batch.unwrap());
         let save_mode = mode.parse().map_err(PythonError::from)?;
 
         let options = storage_options.clone().unwrap_or_default();