test: remove base handler regression test

Signed-off-by: Anas Khan <83116240+anxkhn@users.noreply.github.com>

Author: anxkhn

tests/table/test_partitioning.py

@@ -22,12 +22,7 @@
 import pytest
 
 from pyiceberg.exceptions import ValidationError
-from pyiceberg.partitioning import (
-    UNPARTITIONED_PARTITION_SPEC,
-    PartitionField,
-    PartitionSpec,
-    _to_partition_representation,
-)
+from pyiceberg.partitioning import UNPARTITIONED_PARTITION_SPEC, PartitionField, PartitionSpec
 from pyiceberg.schema import Schema
 from pyiceberg.transforms import (
     BucketTransform,
@@ -258,13 +253,6 @@ def test_transform_consistency_with_pyarrow_transform(source_type: PrimitiveType
             assert t.transform(source_type)(value) == t.pyarrow_transform(source_type)(pa.array([value])).to_pylist()[0]
 
 
-def test_to_partition_representation_unsupported_type() -> None:
-    unsupported_type = StructType(NestedField(1, "x", StringType()))
-
-    with pytest.raises(TypeError, match="Unsupported partition field type: struct"):
-        _to_partition_representation(unsupported_type, "value")
-
-
 def test_deserialize_partition_field_v2() -> None:
     json_partition_spec = """{"source-id": 1, "field-id": 1000, "transform": "truncate[19]", "name": "str_truncate"}"""