Revert force conversion for utf8 and binaries to their large counterp…

…arts

src/arrow2/src/io/parquet/read/deserialize/mod.rs

@@ -204,23 +204,14 @@ pub fn n_columns(data_type: &DataType) -> usize {
 pub fn column_iter_to_arrays<'a, I>(
     columns: Vec<I>,
     types: Vec<&PrimitiveType>,
-    mut field: Field,
+    field: Field,
     chunk_size: Option<usize>,
     num_rows: usize,
     num_values: Vec<usize>,
 ) -> Result<ArrayIter<'a>>
 where
     I: Pages + 'a,
 {
-    let utf_and_binary_to_large = true;
-    if utf_and_binary_to_large {
-        match field.data_type {
-            DataType::Utf8 => field.data_type = DataType::LargeUtf8,
-            DataType::Binary => field.data_type = DataType::LargeBinary,
-            _ => (),
-        }
-    };
-
     Ok(Box::new(
         columns_to_iter_recursive(
             columns,