remove unneeded dependency

src/udf.rs

@@ -21,7 +21,7 @@ use pyo3::{prelude::*, types::PyTuple};
 
 use datafusion::arrow::array::{make_array, Array, ArrayData, ArrayRef};
 use datafusion::arrow::datatypes::DataType;
-use datafusion::arrow::pyarrow::{FromPyArrow, PyArrowType, ToPyArrow};
+use datafusion::arrow::pyarrow::{PyArrowType, ToPyArrow};
 use datafusion::error::DataFusionError;
 use datafusion::logical_expr::create_udf;
 use datafusion::logical_expr::function::ScalarFunctionImplementation;